Turning System File Protection On After Applying Service Packs

  • Thread starter Thread starter CHANGE USERNAME TO westes
  • Start date Start date
C

CHANGE USERNAME TO westes

I have a machine that I want protected by System File Protection (SFP). If
I turn this feature on after many service packs have already been applied,
do I need to install all of those service packs again from scratch? The
SFP initial install seems to create a cache only from the original CD.

If I re-install a service pack, will the Windows Update utility
automatically detect this an prompt to re-install any patches that have been
overwritten?
 
WFP is enabled by default. You can see it in action when you delete a
protected file from the \winnt\system32 folder. Reinstalling a service pack
should not cause a problem with it. You can always use System File Checker
as in sfc /scannow to check for correct versions of system files, and it
should be tried before you reinstall a service pack. System File Checker may
prompt you for the install cd or the path to the source files. The link
below explains more. If you reinstall a service pack it never hurts to go to
Windows Update to check for needed updates or run MBSA on your computer.
Note that running sfc /scannow may cause hotfixes to be overwritten if you
are not using service pack 4. --- Steve

http://support.microsoft.com/kb/222193/EN-US/
http://support.microsoft.com/default.aspx?scid=kb;en-us;814510 -- sfc
/scannow problem with pre SP4.
 
Back
Top