windows file protection

From: blueday (blueday_at_discussions.microsoft.com)
Date: 08/31/04 

Date: Tue, 31 Aug 2004 01:21:02 -0700

keep getting the foloowing message FILES THAT ARE REQUIRED FOR WINDOWSTO RUN
HAVE BEEN REPLACED BY UNRECOGNISED VERSIONS TO MAINTAIN SYSTEM STABILITY
WINDOWS MUS TREDTORE THE ORIGINAL VERSION OF THESE FILES
I have tried to run the sfc/scannow without any success what now