Windows File Protection is a part of System File Checker in Windows 2000 and Windows XP and Windows 2003. Its main function is to avoid consistency issues in DLL files. It may also block changing system files.
For this, go to Start > Run menu, enter “regedit” and navigate to the registry path listed below. Create a REG_DWORD value name " SFCDisable" (if this value doesn't exist). Right Click on the Option “SFCDisable”, and from the drop down menu, select Modify. Enter the value "1" to enable the setting. Click OK.
Restart the computer.
Note:
The other values applicable are as follows:
| Value | Description |
| 0 | Disabled (Default value). |
| 1 | Disabled, prompt at boot to re-enable. |
| 2 | Disabled at next boot only, no prompt to re-enable. |
| 4 | Enabled, with popups disabled. |