When Windows starts up, the Windows File Protection service synchronizes
(copies) the WFP settings from the following registry key
to the following registry key:
Therefore, if any of the following values
are present in the
By default, only users with Administrator or System rights can modify these settings.
1 = disabled, prompt at boot to re-enable
2 = disabled at next boot only, no prompt to re-enable
4 = enabled, with popups disabled
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.
1 = scan protected files at every boot
2 = scan protected files once
FFFFFFFF = cache all protected system files on the local hard disk
NOTE: Network shares for the dllcache directory are no longer supported.
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 or change the SourcePath value in the registry to point to a Universal Naming Convention (UNC) path instead of a mapped network drive.
The SourcePath value is located in the following registry key:
If the I386 directory is at C:\I386, the SourcePath value would be C:\.
If the I386 directory is at \\Servera\w2kflat\I386, the SourcePath value would be \\Servera\W2KFlat.
After you restart the computer, WFP and SFC /SCANNOW uses the new source path instead of prompting for the Windows 2000 installation CD-ROM.
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows
NT\Windows File Protection
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
NT\CurrentVersion\Winlogon
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows
NT\Windows File Protection
key, they will take precedence over the same
values under the
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
NT\CurrentVersion\Winlogon
key. By default, only users with Administrator or System rights can modify these settings.
Registry Values
SFCDisable (REG_DWORD)
0 = enabled (default)1 = disabled, prompt at boot to re-enable
2 = disabled at next boot only, no prompt to re-enable
4 = enabled, with popups disabled
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 0xffffffff or approximately 300 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 no 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 or change the SourcePath value in the registry to point to a Universal Naming Convention (UNC) path instead of a mapped network drive.
The SourcePath value is located in the following registry key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Setup
Example:If the I386 directory is at C:\I386, the SourcePath value would be C:\.
If the I386 directory is at \\Servera\w2kflat\I386, the SourcePath value would be \\Servera\W2KFlat.
After you restart the computer, WFP and SFC /SCANNOW uses the new source path instead of prompting for the Windows 2000 installation CD-ROM.
Article ID: 222473 - Last Review: February 24,
2007 - Revision: 5.4
APPLIES TO
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional Edition
- Microsoft Windows 2000 Datacenter Server
Keywords: |
kbenv kbinfo KB222473 |
