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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Windows File Protection</span></span>
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<p><b>Windows File Protection</b> (<b>WFP</b>), a sub-system included in <a href="Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a> <a href="Operating_system" title="Operating system">operating systems</a> of the <a href="Windows_2000" title="Windows 2000">Windows 2000</a> and <a href="Windows_XP" title="Windows XP">Windows XP</a> era, aims to prevent programs from replacing critical Windows <a href="System_file" title="System file">system files</a>.<sup id="cite_ref-h795_1-0" class="reference"><a href="#cite_note-h795-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-c359_2-0" class="reference"><a href="#cite_note-c359-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-b652_3-0" class="reference"><a href="#cite_note-b652-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Protecting core system files mitigates problems such as <a href="DLL_hell" title="DLL hell">DLL hell</a> with programs and the operating system. Windows 2000, <a href="Windows_XP" title="Windows XP">Windows XP</a> and <a href="Windows_Server_2003" title="Windows Server 2003">Windows Server 2003</a> include WFP under the name of <i>Windows File Protection</i>; <a href="Windows_Me" title="Windows Me">Windows Me</a> includes it as <b>System File Protection</b> (<b>SFP</b>).
</p>
<div class="mw-heading mw-heading2"><h2 id="Operation">Operation</h2></div>
<p>With Windows File Protection active, replacing or deleting a system file that has no <a href="File_locking" title="File locking">file lock</a> to prevent it getting overwritten causes Windows immediately and silently to restore the original copy of the file. The original version of the file is restored from a cached folder which contains backup copies of these files. The <a href="Windows_NT" title="Windows NT">Windows NT</a> family uses the cached folder <style data-mw-deduplicate="TemplateStyles:r886049734">
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</style><span class="monospaced">%SystemRoot%\System32\Dllcache</span>. <a href="Windows_Me" title="Windows Me">Windows Me</a> caches its entire set of compressed cabinet setup files and stores them in the <span class="monospaced">%windir%\Options\Install</span> folder.
</p><p>WFP covers all files which the operating system installs (such as <span class="monospaced">DLL</span>, <span class="monospaced">EXE</span>, <span class="monospaced">SYS</span>, <span class="monospaced">OCX</span> etc.), protecting them from deletion or from replacement by older versions. The <a href="Digital_signature" title="Digital signature">digital signatures</a> of these files are checked using <a href="Code_signing" title="Code signing">code signing</a> and the signature catalog files stored in the <span class="monospaced">%SystemRoot%\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE</span>} folder. Only certain operating system components such as the <i>Package Installer</i> (Update.exe) or <a href="Windows_Installer" title="Windows Installer">Windows Installer</a> (Msiexec.exe) can replace these files. Changes made using any other methods in order to replace these files are reverted and the files are silently restored from the cache. If Windows File Protection cannot automatically find the file in the cached folder, it searches the network path or prompts the user for the Windows installation disc to restore the appropriate version of the file.
</p><p>WFP integrates with the <a href="System_File_Checker" title="System File Checker">System File Checker</a> (<span class="monospaced">sfc.exe</span>) utility.
</p><p><a href="Windows_Vista" title="Windows Vista">Windows Vista</a> and later Windows systems do not include Windows File Protection, but they include <a href="Windows_Resource_Protection" title="Windows Resource Protection">Windows Resource Protection</a> which protects files using <a href="Access_control_list" class="mw-redirect" title="Access control list">ACLs</a>. Windows Resource Protection aims to protect core <a href="Windows_registry" class="mw-redirect" title="Windows registry">registry</a> keys and values and prevent potentially damaging system configuration changes, besides operating system files.
</p><p>The non-use of ACLs in Windows File Protection was a design choice: Not only did it allow operation on non-NTFS systems, but it prevented those same "bad" installers from failing completely from a file access error.
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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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<li id="cite_note-h795-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-h795_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">
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</style><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=krByP88msCwC&pg=PA99"><i>Configuring Windows 2000 without Active Directory</i></a>. Syngress. 2001. pp. <span class="nowrap">99–</span>105. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-08-047672-8</bdi><span class="reference-accessdate">. Retrieved <span class="nowrap">2025-03-01</span></span>.</cite></span>
</li>
<li id="cite_note-c359-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-c359_2-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFCarvey2012" class="citation book cs1">Carvey, H. (2012). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=rsdAX92FWBgC&pg=PA180"><i>Windows Forensic Analysis Toolkit: Advanced Analysis Techniques for Windows 7</i></a>. Syngress. p. 180. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-59749-728-2</bdi><span class="reference-accessdate">. Retrieved <span class="nowrap">2025-03-01</span></span>.</cite></span>
</li>
<li id="cite_note-b652-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-b652_3-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFHart-Davis2006" class="citation book cs1">Hart-Davis, G. (2006). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Fy8_GF42WCIC&pg=PA439"><i>Mastering Windows XP Home Edition</i></a>. Wiley. p. 439. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-7821-5059-9</bdi><span class="reference-accessdate">. Retrieved <span class="nowrap">2025-03-01</span></span>.</cite></span>
</li>
</ol></div></div>
<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><a rel="nofollow" class="external text" href="http://support.microsoft.com/kb/222193">Overview of Windows File Protection</a></li>
<li><a rel="nofollow" class="external text" href="http://support.microsoft.com/kb/222473">Registry settings for Windows File Protection</a></li>
<li><a rel="nofollow" class="external text" href="http://www.microsoft.com/whdc/archive/wfp.mspx">Whitepaper on Windows File Protection</a></li>
<li><a rel="nofollow" class="external text" href="http://support.microsoft.com/kb/253571">Overview of System File Protection (Windows Me)</a></li>
<li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20160321062438/https://bitsum.com/aboutwfp.asp">Hacking Windows File Protection</a></li>
<li><a rel="nofollow" class="external text" href="https://filehare.com/download-protected-folder/">Effective Files Protection Tool</a></li></ul>
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</style><div id="Microsoft_Windows_components875" style="font-size:114%;margin:0 4em"><a href="List_of_Microsoft_Windows_components" title="List of Microsoft Windows components">Microsoft Windows components</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>
<ul><li><a href="List_of_Microsoft_Windows_application_programming_interfaces_and_frameworks" title="List of Microsoft Windows application programming interfaces and frameworks">APIs</a></li>
<li>Architecture
<ul><li><a href="Architecture_of_Windows_9x" title="Architecture of Windows 9x">9x</a></li>
<li><a href="Architecture_of_Windows_NT" title="Architecture of Windows NT">NT</a></li></ul></li>
<li><a href="Booting_process_of_Windows" title="Booting process of Windows">Booting process</a></li>
<li><a href="List_of_games_included_with_Windows" title="List of games included with Windows">Games</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Management<br>tools</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="App_Installer" title="App Installer">App Installer</a></li>
<li><a href="Cmd.exe" title="Cmd.exe">Command Prompt</a></li>
<li><a href="Control_Panel_(Windows)" title="Control Panel (Windows)">Control Panel</a></li>
<li><a href="Device_Manager" title="Device Manager">Device Manager</a></li>
<li><a href="DirectX_Diagnostic_Tool" title="DirectX Diagnostic Tool">DirectX Diagnostic Tool</a></li>
<li><a href="Disk_Cleanup" title="Disk Cleanup">Disk Cleanup</a></li>
<li><a href="Microsoft_Drive_Optimizer" title="Microsoft Drive Optimizer">Drive Optimizer</a></li>
<li><a href="Driver_Verifier" title="Driver Verifier">Driver Verifier</a></li>
<li><a href="Event_Viewer" title="Event Viewer">Event Viewer</a></li>
<li><a href="IExpress" title="IExpress">IExpress</a></li>
<li><a href="Microsoft_Management_Console" title="Microsoft Management Console">Management Console</a></li>
<li><a href="Netsh" title="Netsh">Netsh</a></li>
<li><a href="Performance_Monitor" title="Performance Monitor">Performance Monitor</a></li>
<li><a href="PowerShell" title="PowerShell">PowerShell</a></li>
<li><a href="Recovery_Console" title="Recovery Console">Recovery Console</a></li>
<li><a href="Resource_Monitor" title="Resource Monitor">Resource Monitor</a></li>
<li><a href="Settings_(Windows)" title="Settings (Windows)">Settings</a></li>
<li><a href="Sysprep" title="Sysprep">Sysprep</a></li>
<li><a href="MSConfig" title="MSConfig">System Configuration</a></li>
<li><a href="System_File_Checker" title="System File Checker">System File Checker</a></li>
<li><a href="System_Information_(Windows)" title="System Information (Windows)">System Information</a></li>
<li><a href="System_Policy_Editor" title="System Policy Editor">System Policy Editor</a></li>
<li><a href="System_Restore" title="System Restore">System Restore</a></li>
<li><a href="Task_Manager_(Windows)" title="Task Manager (Windows)">Task Manager</a></li>
<li><a href="Windows_Error_Reporting" title="Windows Error Reporting">Windows Error Reporting</a></li>
<li><a href="Windows_Ink" title="Windows Ink">Windows Ink</a></li>
<li><a href="Windows_Installer" title="Windows Installer">Windows Installer</a></li>
<li><a href="Windows_Update" title="Windows Update">Windows Update</a>
<ul><li><a href="Windows_Insider" title="Windows Insider">Windows Insider</a></li></ul></li>
<li><a href="Windows_Preinstallation_Environment#Windows_Recovery_Environment" title="Windows Preinstallation Environment">WinRE</a></li>
<li><a href="Windows_Management_Instrumentation" title="Windows Management Instrumentation">WMI</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Application_software" title="Application software">Apps</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Microsoft_3D_Viewer" title="Microsoft 3D Viewer">3D Viewer</a></li>
<li><a href="Windows_Calculator" title="Windows Calculator">Calculator</a></li>
<li><a href="Calendar_(Windows)" title="Calendar (Windows)">Calendar</a></li>
<li><a href="Windows_Camera" title="Windows Camera">Camera</a></li>
<li><a href="Character_Map_(Windows)" title="Character Map (Windows)">Character Map</a></li>
<li><a href="City_Art_Search" title="City Art Search">City Art Search</a></li>
<li><a href="Clipchamp" title="Clipchamp">Clipchamp</a></li>
<li><a href="Windows_Clock" title="Windows Clock">Clock</a></li>
<li><a href="Microsoft_Intune" title="Microsoft Intune">Company Portal</a></li>
<li><a href="Microsoft_Copilot" title="Microsoft Copilot">Copilot</a></li>
<li><a href="Microsoft_Edge" title="Microsoft Edge">Edge</a></li>
<li><a href="Windows_Fax_and_Scan" title="Windows Fax and Scan">Fax and Scan</a></li>
<li><a href="Feedback_Hub" title="Feedback Hub">Feedback Hub</a></li>
<li><a href="Get_Help" title="Get Help">Get Help</a></li>
<li><a href="Magnifier_(Windows)" title="Magnifier (Windows)">Magnifier</a></li>
<li><a href="Mail_(Windows)" title="Mail (Windows)">Mail</a></li>
<li><a href="Windows_Media_Player" title="Windows Media Player">Media Player</a>
<ul><li><a href="Windows_Media_Player_(2022)" title="Windows Media Player (2022)">2022</a></li></ul></li>
<li><a href="Microsoft_Mesh" title="Microsoft Mesh">Mesh</a></li>
<li><a href="Microsoft_Messaging" title="Microsoft Messaging">Messaging</a></li>
<li><a href="Windows_Mobility_Center" title="Windows Mobility Center">Mobility Center</a></li>
<li><a href="MSN#MSN_Money_app" title="MSN">Money</a></li>
<li><a href="Microsoft_Movies_%26_TV" title="Microsoft Movies & TV">Movies & TV</a></li>
<li><a href="Narrator_(Windows)" title="Narrator (Windows)">Narrator</a></li>
<li><a href="MSN#MSN_app" title="MSN">News</a></li>
<li><a href="Windows_Notepad" title="Windows Notepad">Notepad</a></li>
<li><a href="OneDrive" title="OneDrive">OneDrive</a></li>
<li><a href="Microsoft_OneNote" title="Microsoft OneNote">OneNote</a></li>
<li><a href="Microsoft_Paint" title="Microsoft Paint">Paint</a></li>
<li><a href="Microsoft_PC_Manager" title="Microsoft PC Manager">PC Manager</a></li>
<li><a href="People_(Windows)" title="People (Windows)">People</a></li>
<li><a href="Phone_Link" title="Phone Link">Phone Link</a></li>
<li><a href="Photos_(Windows)" title="Photos (Windows)">Photos</a></li>
<li><a href="Quick_Assist" title="Quick Assist">Quick Assist</a></li>
<li><a href="Remote_Desktop_Connection" class="mw-redirect" title="Remote Desktop Connection">Remote Desktop Connection</a></li>
<li><a href="Snipping_Tool" title="Snipping Tool">Snipping Tool</a></li>
<li><a href="Windows_Speech_Recognition" title="Windows Speech Recognition">Speech Recognition</a></li>
<li><a href="Sticky_Notes" title="Sticky Notes">Sticky Notes</a></li>
<li><a href="Microsoft_Store" title="Microsoft Store">Store</a></li>
<li><a href="Windows_Terminal" title="Windows Terminal">Terminal</a></li>
<li><a href="Microsoft_Tips" title="Microsoft Tips">Tips</a></li>
<li><a href="Microsoft_To_Do" title="Microsoft To Do">To Do</a></li>
<li><a href="Sound_Recorder_(Windows)" title="Sound Recorder (Windows)">Voice Recorder</a></li>
<li><a href="MSN#MSN_Weather_app" title="MSN">Weather</a></li>
<li><a href="Microsoft_Whiteboard" title="Microsoft Whiteboard">Whiteboard</a></li>
<li><a href="List_of_Remote_Desktop_Protocol_clients#Windows_App" title="List of Remote Desktop Protocol clients">Windows App</a></li>
<li><a href="Xbox_(app)" title="Xbox (app)">Xbox</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Windows_shell" title="Windows shell">Shell</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Action_Center" title="Action Center">Action Center</a></li>
<li><a href="Windows_Aero" title="Windows Aero">Aero</a></li>
<li><a href="AutoPlay" title="AutoPlay">AutoPlay</a></li>
<li><a href="AutoRun" title="AutoRun">AutoRun</a></li>
<li><a href="ClearType" title="ClearType">ClearType</a></li>
<li><a href="File_Explorer" title="File Explorer">Explorer</a></li>
<li><a href="Windows_Search" title="Windows Search">Search</a>
<ul><li><a href="IFilter" title="IFilter">IFilter</a></li>
<li><a href="Indexing_Service" title="Indexing Service">Indexing Service</a></li>
<li><a href="Windows_Shell_namespace" title="Windows Shell namespace">Namespace</a></li>
<li><a href="Virtual_folder#Windows" title="Virtual folder">Saved search</a></li>
<li><a href="Special_folder" title="Special folder">Special folder</a></li></ul></li>
<li><a href="Start_menu" title="Start menu">Start menu</a></li>
<li><a href="Task_View" title="Task View">Task View</a></li>
<li><a href="Taskbar" title="Taskbar">Taskbar</a></li>
<li><a href="Windows_Spotlight" title="Windows Spotlight">Windows Spotlight</a></li>
<li><a href="Windows_XP_visual_styles" title="Windows XP visual styles">Windows XP visual styles</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Windows_service" title="Windows service">Services</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Background_Intelligent_Transfer_Service" title="Background Intelligent Transfer Service">BITS</a></li>
<li><a href="Common_Log_File_System" title="Common Log File System">CLFS</a></li>
<li><a href="Windows_Error_Reporting" title="Windows Error Reporting">Error Reporting</a></li>
<li><a href="Multimedia_Class_Scheduler_Service" title="Multimedia Class Scheduler Service">Multimedia Class Scheduler</a></li>
<li><a href="Service_Control_Manager" title="Service Control Manager">Service Control Manager</a></li>
<li><a href="Shadow_Copy" title="Shadow Copy">Shadow Copy</a></li>
<li><a href="Windows_Task_Scheduler" title="Windows Task Scheduler">Task Scheduler</a></li>
<li><a href="Wireless_Zero_Configuration" title="Wireless Zero Configuration">Wireless Zero Configuration</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="File_system" title="File system">File systems</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="ISO_9660" title="ISO 9660">CDFS</a></li>
<li><a href="Distributed_File_System_(Microsoft)" title="Distributed File System (Microsoft)">DFS</a></li>
<li><a href="ExFAT" title="ExFAT">exFAT</a></li>
<li><a href="File_Allocation_Table" title="File Allocation Table">FAT</a></li>
<li><a href="Installable_File_System" title="Installable File System">IFS</a></li>
<li><a href="NTFS" title="NTFS">NTFS</a>
<ul><li><a href="Encrypting_File_System" title="Encrypting File System">EFS</a></li>
<li><a href="Hard_link" title="Hard link">Hard link</a></li>
<li><a href="NTFS_links" title="NTFS links">links</a></li>
<li><a href="NTFS_volume_mount_point" title="NTFS volume mount point">Mount Point</a></li>
<li><a href="NTFS_reparse_point" title="NTFS reparse point">Reparse point</a></li>
<li><a href="Transactional_NTFS" title="Transactional NTFS">TxF</a></li></ul></li>
<li><a href="ReFS" title="ReFS">ReFS</a></li>
<li><a href="Universal_Disk_Format" title="Universal Disk Format">UDF</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Server_(computing)" title="Server (computing)">Server</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Active_Directory" title="Active Directory">Active Directory</a></li>
<li><a href="Active_Directory_Rights_Management_Services" title="Active Directory Rights Management Services">Active DRM Services</a></li>
<li><a href="File_Replication_Service" title="File Replication Service">DFS Replication</a></li>
<li><a href="Microsoft_Distributed_Transaction_Coordinator" title="Microsoft Distributed Transaction Coordinator">Distributed Transaction Coordinator</a></li>
<li><a href="Microsoft_DNS" title="Microsoft DNS">DNS</a></li>
<li><a href="Windows_domain" title="Windows domain">Domains</a></li>
<li><a href="Folder_redirection" title="Folder redirection">Folder redirection</a></li>
<li><a href="Group_Policy" title="Group Policy">Group Policy</a></li>
<li><a href="Hyper-V" title="Hyper-V">Hyper-V</a></li>
<li><a href="Internet_Information_Services" title="Internet Information Services">IIS</a></li>
<li><a href="Microsoft_Message_Queuing" title="Microsoft Message Queuing">MSMQ</a></li>
<li><a href="Network_Access_Protection" title="Network Access Protection">Network Access Protection</a></li>
<li>Print Services for UNIX</li>
<li><a href="Microsoft_Personal_Web_Server" title="Microsoft Personal Web Server">PWS</a></li>
<li><a href="Remote_Desktop_Services" title="Remote Desktop Services">Remote Desktop Services</a></li>
<li><a href="Remote_Differential_Compression" title="Remote Differential Compression">Remote Differential Compression</a></li>
<li><a href="Remote_Installation_Services" title="Remote Installation Services">Remote Installation Services</a></li>
<li><a href="Roaming_user_profile" title="Roaming user profile">Roaming user profiles</a></li>
<li><a href="Server_Core" title="Server Core">Server Core</a></li>
<li><a href="SharePoint" title="SharePoint">SharePoint</a></li>
<li><a href="Windows_System_Resource_Manager" title="Windows System Resource Manager">System Resource Manager</a></li>
<li><a href="Windows_Deployment_Services" title="Windows Deployment Services">Windows Deployment Services</a></li>
<li><a href="Windows_Media_Services" title="Windows Media Services">Windows Media Services</a></li>
<li><a href="Windows_Server_Update_Services" title="Windows Server Update Services">WSUS</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Software_architecture" title="Software architecture">Architecture</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Windows_Boot_Manager" title="Windows Boot Manager">Boot Manager</a></li>
<li><a href="Windows_Console" title="Windows Console">Console</a></li>
<li><a href="Client/Server_Runtime_Subsystem" title="Client/Server Runtime Subsystem">CSRSS</a></li>
<li><a href="Desktop_Window_Manager" title="Desktop Window Manager">Desktop Window Manager</a></li>
<li><a href="Enhanced_Write_Filter" title="Enhanced Write Filter">Enhanced Write Filter</a></li>
<li><a href="Graphics_Device_Interface" title="Graphics Device Interface">Graphics Device Interface</a></li>
<li><a href="Microsoft_Windows_library_files#Hardware_Abstraction_Layer" title="Microsoft Windows library files">Hardware Abstraction Layer</a></li>
<li><a href="I/O_request_packet" title="I/O request packet">I/O request packet</a></li>
<li><a href="Windows_Imaging_Format" title="Windows Imaging Format">Imaging Format</a></li>
<li><a href="Kernel_Transaction_Manager" title="Kernel Transaction Manager">Kernel Transaction Manager</a></li>
<li><a href="Microsoft_Windows_library_files" title="Microsoft Windows library files">Library files</a></li>
<li><a href="Logical_Disk_Manager" title="Logical Disk Manager">Logical Disk Manager</a></li>
<li><a href="Local_Security_Authority_Subsystem_Service" title="Local Security Authority Subsystem Service">LSASS</a></li>
<li><a href="MinWin" title="MinWin">MinWin</a></li>
<li><a href="NTLDR" title="NTLDR">NTLDR</a></li>
<li><a href="Ntoskrnl.exe" title="Ntoskrnl.exe">Ntoskrnl.exe</a></li>
<li><a href="Object_Manager" title="Object Manager">Object Manager</a></li>
<li><a href="Open_XML_Paper_Specification" title="Open XML Paper Specification">Open XML Paper Specification</a></li>
<li><a href="Portable_Executable" title="Portable Executable">Portable Executable</a>
<ul><li><a href="Dynamic-link_library" title="Dynamic-link library">DLL</a></li>
<li><a href=".exe" title=".exe">EXE</a></li></ul></li>
<li><a href="Windows_Registry" title="Windows Registry">Registry</a></li>
<li><a href="Windows_Resource_Protection" title="Windows Resource Protection">Resource Protection</a></li>
<li><a href="Security_Account_Manager" title="Security Account Manager">Security Account Manager</a></li>
<li><a href="Server_Message_Block" title="Server Message Block">Server Message Block</a></li>
<li><a href="Shadow_Copy" title="Shadow Copy">Shadow Copy</a></li>
<li><a href="Session_Manager_Subsystem" title="Session Manager Subsystem">SMSS</a></li>
<li><a href="System_Idle_Process" title="System Idle Process">System Idle Process</a></li>
<li><a href="Windows_USER" title="Windows USER">USER</a></li>
<li><a href="Windows_Hardware_Error_Architecture" title="Windows Hardware Error Architecture">WHEA</a></li>
<li><a href="Winlogon" title="Winlogon">Winlogon</a></li>
<li><a href="WinUSB" title="WinUSB">WinUSB</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Security</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Security_and_Maintenance" title="Security and Maintenance">Security and Maintenance</a></li>
<li><a href="AppLocker" title="AppLocker">AppLocker</a></li>
<li><a href="BitLocker" title="BitLocker">BitLocker</a></li>
<li><a href="Credential_Guard" title="Credential Guard">Credential Guard</a></li>
<li><a href="Data_Execution_Prevention" class="mw-redirect" title="Data Execution Prevention">Data Execution Prevention</a></li>
<li><a href="Microsoft_Defender_Antivirus" title="Microsoft Defender Antivirus">Defender</a></li>
<li><a href="Microsoft_family_features" title="Microsoft family features">Family features</a></li>
<li><a href="Kernel_Patch_Protection" title="Kernel Patch Protection">Kernel Patch Protection</a></li>
<li><a href="Mandatory_Integrity_Control" title="Mandatory Integrity Control">Mandatory Integrity Control</a></li>
<li><a href="Protected_Media_Path" title="Protected Media Path">Protected Media Path</a></li>
<li><a href="User_Account_Control" title="User Account Control">User Account Control</a></li>
<li><a href="User_Interface_Privilege_Isolation" title="User Interface Privilege Isolation">User Interface Privilege Isolation</a></li>
<li><a href="Windows_Firewall" title="Windows Firewall">Windows Firewall</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Compatibility</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="COMMAND.COM" title="COMMAND.COM">COMMAND.COM</a></li>
<li><a href="Windows_Subsystem_for_Linux" title="Windows Subsystem for Linux">Windows Subsystem for Linux</a></li>
<li><a href="WoW64" title="WoW64">WoW64</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="API" title="API">API</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Active_Scripting" title="Active Scripting">Active Scripting</a>
<ul><li><a href="JScript" title="JScript">JScript</a></li>
<li><a href="VBScript" title="VBScript">VBScript</a></li>
<li><a href="Windows_Script_Host" title="Windows Script Host">WSH</a></li></ul></li>
<li><a href="Component_Object_Model" title="Component Object Model">COM</a>
<ul><li><a href="ActiveX" title="ActiveX">ActiveX</a></li>
<li><a href="ActiveX_Document" title="ActiveX Document">ActiveX Document</a></li>
<li><a href="COM_Structured_Storage" title="COM Structured Storage">COM Structured storage</a></li>
<li><a href="Distributed_Component_Object_Model" title="Distributed Component Object Model">DCOM</a></li>
<li><a href="Object_Linking_and_Embedding" title="Object Linking and Embedding">OLE</a></li>
<li><a href="OLE_Automation" title="OLE Automation">OLE Automation</a></li>
<li><a href="Microsoft_Transaction_Server" title="Microsoft Transaction Server">Transaction Server</a></li></ul></li>
<li><a href="DirectX" title="DirectX">DirectX</a></li>
<li><a href="Windows_Native_API" title="Windows Native API">Native</a></li>
<li><a href=".NET" title=".NET">.NET</a></li>
<li><a href="Universal_Windows_Platform" title="Universal Windows Platform">Universal Windows Platform</a></li>
<li><a href="Windows_API" title="Windows API">WinAPI</a></li>
<li><a href="Windows_Mixed_Reality" title="Windows Mixed Reality">Windows Mixed Reality</a></li>
<li><a href="Windows_Runtime" title="Windows Runtime">Windows Runtime</a></li>
<li><a href="WinUSB" title="WinUSB">WinUSB</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Video_game" title="Video game">Games</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><i><a href="Microsoft_Solitaire_Collection" title="Microsoft Solitaire Collection">Solitaire Collection</a></i></li>
<li><i><a href="Surf_(video_game)" title="Surf (video game)">Surf</a></i></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Discontinued</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Games</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><i><a href="Full_Tilt!_Pinball#3D_Pinball_for_Windows_–_Space_Cadet" title="Full Tilt! Pinball">3D Pinball</a></i></li>
<li><i><a href="Chess_Titans" title="Chess Titans">Chess Titans</a></i></li>
<li><i><a href="Microsoft_FreeCell" title="Microsoft FreeCell">FreeCell</a></i></li>
<li><i><a href="Microsoft_Hearts" title="Microsoft Hearts">Hearts</a></i></li>
<li><i><a href="Windows_Ultimate_Extras" title="Windows Ultimate Extras">Hold 'Em</a></i></li>
<li><i><a href="InkBall" title="InkBall">InkBall</a></i></li>
<li><i><a href="Purble_Place" title="Purble Place">Purble Place</a></i></li>
<li><i><a href="Microsoft_Solitaire" title="Microsoft Solitaire">Solitaire</a></i></li>
<li><i><a href="Microsoft_Spider_Solitaire" title="Microsoft Spider Solitaire">Spider Solitaire</a></i></li>
<li><i><a href="Microsoft_Tinker" title="Microsoft Tinker">Tinker</a></i></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Apps</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="ActiveMovie" title="ActiveMovie">ActiveMovie</a></li>
<li><a href="Windows_Address_Book" title="Windows Address Book">Address Book</a></li>
<li><a href="Windows_Anytime_Upgrade" title="Windows Anytime Upgrade">Anytime Upgrade</a></li>
<li><a href="Backup_and_Restore" title="Backup and Restore">Backup and Restore</a></li>
<li><a href="Cardfile" title="Cardfile">Cardfile</a></li>
<li><a href="Windows_CardSpace" title="Windows CardSpace">CardSpace</a></li>
<li><a href="CD_Player_(Windows)" title="CD Player (Windows)">CD Player</a></li>
<li><a href="Windows_Chat" title="Windows Chat">Chat</a></li>
<li><a href="Windows_Contacts" title="Windows Contacts">Contacts</a></li>
<li><a href="Cortana_(virtual_assistant)" title="Cortana (virtual assistant)">Cortana</a></li>
<li><a href="Windows_Desktop_Gadgets" title="Windows Desktop Gadgets">Desktop Gadgets</a></li>
<li><a href="Microsoft_Diagnostics" title="Microsoft Diagnostics">Diagnostics</a></li>
<li><a href="DriveSpace" title="DriveSpace">DriveSpace</a></li>
<li><a href="Windows_DVD_Maker" title="Windows DVD Maker">DVD Maker</a></li>
<li><a href="Windows_Easy_Transfer" title="Windows Easy Transfer">Easy Transfer</a></li>
<li><a href="Microsoft_Edge_Legacy" title="Microsoft Edge Legacy">Edge Legacy</a></li>
<li><a href="Microsoft_Fax" class="mw-redirect" title="Microsoft Fax">Fax</a></li>
<li><a href="MSN_Food_%26_Drink" class="mw-redirect" title="MSN Food & Drink">Food & Drink</a></li>
<li><a href="Groove_Music" title="Groove Music">Groove Music</a></li>
<li><a href="MSN_Health_%26_Fitness" class="mw-redirect" title="MSN Health & Fitness">Health & Fitness</a></li>
<li><a href="Help_and_Support_Center" class="mw-redirect" title="Help and Support Center">Help and Support Center</a></li>
<li><a href="HyperACCESS" title="HyperACCESS">HyperTerminal</a></li>
<li><a href="Imaging_for_Windows" title="Imaging for Windows">Imaging</a></li>
<li><a href="Internet_Explorer" title="Internet Explorer">Internet Explorer</a></li>
<li><a href="Windows_Journal" title="Windows Journal">Journal</a></li>
<li><a href="Make_Compatible" title="Make Compatible">Make Compatible</a></li>
<li><a href="Windows_Maps" title="Windows Maps">Maps</a></li>
<li><a href="Windows_Media_Center" title="Windows Media Center">Media Center</a></li>
<li><a href="Windows_Meeting_Space" title="Windows Meeting Space">Meeting Space</a></li>
<li><a href="Windows_Messaging" title="Windows Messaging">Messaging</a></li>
<li><a href="Windows_Messenger" title="Windows Messenger">Messenger</a></li>
<li><a href="Windows_Mobile_Device_Center" title="Windows Mobile Device Center">Mobile Device Center</a></li>
<li><a href="Windows_Movie_Maker" title="Windows Movie Maker">Movie Maker</a></li>
<li><a href="MSN_Dial-Up_Internet_Access" title="MSN Dial-Up Internet Access">MSN Dial-Up</a></li>
<li><a href="Microsoft_NetMeeting" title="Microsoft NetMeeting">NetMeeting</a></li>
<li><a href="NTBackup" title="NTBackup">NTBackup</a></li>
<li><a href="Outlook_Express" title="Outlook Express">Outlook Express</a></li>
<li><a href="Paint_3D" title="Paint 3D">Paint 3D</a></li>
<li><a href="Microsoft_Pay" title="Microsoft Pay">Pay</a></li>
<li><a href="Phone_Companion" title="Phone Companion">Phone Companion</a></li>
<li><a href="Windows_Photo_Gallery" title="Windows Photo Gallery">Photo Gallery</a></li>
<li><a href="Windows_Photo_Viewer" title="Windows Photo Viewer">Photo Viewer</a></li>
<li><a href="Program_Manager" title="Program Manager">Program Manager</a></li>
<li><a href="Skype" title="Skype">Skype</a></li>
<li><a href="MSN#Discontinued_apps" title="MSN">Sports</a></li>
<li><a href="Microsoft_Start" title="Microsoft Start">Start</a></li>
<li><a href="Problem_Steps_Recorder" class="mw-redirect" title="Problem Steps Recorder">Steps Recorder</a></li>
<li><a href="Syskey" title="Syskey">Syskey</a></li>
<li><a href="Travel_(Windows)" class="mw-redirect" title="Travel (Windows)">Travel</a></li>
<li><a href="WinHelp" title="WinHelp">WinHelp</a></li>
<li><a href="WordPad" title="WordPad">WordPad</a></li>
<li><a href="Microsoft_Write" title="Microsoft Write">Write</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Desktop_Cleanup_Wizard" title="Desktop Cleanup Wizard">Desktop Cleanup Wizard</a></li>
<li><a href="Games_for_Windows" title="Games for Windows">Games for Windows</a></li>
<li><a href="High_Performance_File_System" title="High Performance File System">HPFS</a></li>
<li><a href="Interix" title="Interix">Interix</a></li>
<li><a href="Media_Control_Interface" title="Media Control Interface">Media Control Interface</a></li>
<li><a href="MS-DOS_7" title="MS-DOS 7">MS-DOS 7</a></li>
<li><a href="Next-Generation_Secure_Computing_Base" title="Next-Generation Secure Computing Base">Next-Generation Secure Computing Base</a></li>
<li><a href="Microsoft_POSIX_subsystem" title="Microsoft POSIX subsystem">POSIX subsystem</a></li>
<li><a href="Microsoft_ScanDisk" title="Microsoft ScanDisk">ScanDisk</a></li>
<li><a href="Video_for_Windows" title="Video for Windows">Video for Windows</a></li>
<li><a href="Virtual_DOS_machine" title="Virtual DOS machine">Virtual DOS machine</a></li>
<li><a href="Windows_on_Windows" title="Windows on Windows">Windows on Windows</a></li>
<li><a href="Windows_Services_for_UNIX" title="Windows Services for UNIX">Windows Services for UNIX</a></li>
<li><a href="Windows_SideShow" title="Windows SideShow">Windows SideShow</a></li>
<li><a href="Windows_System_Assessment_Tool" title="Windows System Assessment Tool">Windows System Assessment Tool</a></li>
<li><a href="Windows_To_Go" title="Windows To Go">Windows To Go</a></li>
<li><a href="WinFS" title="WinFS">WinFS</a></li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Spun off to<br><a href="Microsoft_Store" title="Microsoft Store">Microsoft Store</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="DVD_Player_(Windows)" title="DVD Player (Windows)">DVD Player</a></li>
<li><a href="Windows_File_Manager" title="Windows File Manager">File Manager</a></li>
<li><a href="Hover!" title="Hover!">Hover!</a></li>
<li><a href="Microsoft_Mahjong" title="Microsoft Mahjong">Mahjong</a></li>
<li><a href="Microsoft_Minesweeper" title="Microsoft Minesweeper">Minesweeper</a></li></ul>
</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>
<ul><li><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> Category</li>
<li><span class="noviewer" typeof="mw:File"><span title="List-Class article"></span></span> <a href="List_of_Microsoft_Windows_components" title="List of Microsoft Windows components">List</a></li></ul>
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This article is issued from <a class="external text" title="Last edited on 2025-07-03" href="https://en.wikipedia.org/wiki/?title=Windows_File_Protection&oldid=1298580192">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
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