sentences:  Windows 2000, Windows XP and Windows Server 2003 include WFP under the name of "Windows File Protection"; Windows Me includes it as System File Protection (SFP).With Windows File Protection active, replacing or deleting a system file that has no file lock 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.