Disabling Windows File Protection Permanently. I made an hacked SFC_OS.DLL for disabling WFP without any registry settings. You can replace the file from your Windows XP SP2 source files or follow this guide if you have already installed XP. 1) Rename the hacked SFC_OS.DLL to SFC_OS.DLL.HACK 2) Unchecked "Hide protected operating system files" from "Folder Options" 3) Copy SFC_OS.DLL.HACK to "%WINDIR%\system32\dllcache" 4) Copy SFC_OS.DLL.HACK to "%WINDIR%\system32" 5) Start Task Manager, select Processes tab, right-click on explorer.exe and select End Process 6) On Task Manager menu, select File / New Task(Run...) and browse to "%WINDIR%\system32\dllcache" 7) Rename SFC_OS.DLL to SFC_OS.DLL.BAK and rename SFC_OS.DLL.HACK to SFC_OS.DLL 8) Browse to "%WINDIR%\system32" 9) Rename SFC_OS.DLL to SFC_OS.DLL.BAK and rename SFC_OS.DLL.HACK to SFC_OS.DLL If windows appears select "Cancel" and on Task Manager menu, select Shutdown / Restart That's it. For re-enabling I think it's obvious. English SP2 SFC_OS.DL_ French SP2 SFC_OS.DL_ Get the english one and just place it in your I386 folder overwriting the original that is all you need to do.