You must be logged on as a member of the Administrators group to run sfc.
If sfc discovers that a protected file has been overwritten, it retrieves the correct version of the file from the %systemroot%\system32\dllcache folder, and then replaces the incorrect file.
went kinda quick (5-7 sec)
ok, here it is, I reinstalled xp, came across a prob when i clicked start, help. no help avail. gave me error, so i entered reg entry for that. MSCONFIG same
Now, I seem to be missing loads of files related to the os. first of all start> all pro's > accessories > system tools only has 3 entries no administrative tools anywhere.
also, all the pics for the os i had to expand from the disk. Were not on the hd. (now they are in c:\ huh)
I cannot install any microsoft updates, it dont even download them