Registry Settings for Windows File Protection

ID: Q222473

The information in this article applies to:

Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server

SUMMARY

All registry settings for Windows File Protection/System File Checker are located in the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

MORE INFORMATION

By default, only users with Administrator or System rights can modify these settings.

Registry Values

SFCDisable (REG_DWORD)

0 = enabled (default on Professional)
1 = disabled, prompt at boot to re-enable
2 = disabled at next boot only, no prompt to re-enable
4 = enabled, with popups disabled (default on Server, Advanced Server, and Datacenter Server)

NOTE: For options 1 and 2: Both of these options require a kernel debugger to be hooked up for those options to become useable. If a kernel debugger is not hooked up, Windows File Protection is not disabled.

SFCScan (REG_DWORD)

0 = do not scan protected files at boot (default)
1 = scan protected files at every boot
2 = scan protected files once

SFCQuota (REG_DWORD)

n = size (in megabytes) of dllcache quota (default is 0x32h or 50 MB)
FFFFFFFF = cache all protected system files on the local hard disk

SFCDllCacheDir (REG_EXPAND_SZ)

Path = local or network location of dllcache folder (default is %SystemRoot%\System32)

NOTE: Network shares for the dllcache directory are not longer supported.

SFCShowProgress (REG_DWORD)

0 = System File Checker progress meter is not displayed (default)
1 = System File Checker progress meter is displayed

NOTE: The Windows 2000 source files location information is stored in the following registry location and can be modified to point to the drive letter of a volume that has an I386 flat folder of the installation files

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup\SourceFiles:REG_SZ:drive letter:

where drive letter is the appropriate drive letter. After Rebooting, WFP and SFC /SCANNOW will use the new source path instead of prompting for the Windows 2000 installation CD-ROM.

Additional query words: sfc sfp wfp compatguidechange

Keywords : kbenv kbWinOS2000
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbinfo