Mod Edit: Split from http://www.bleepingcomputer.com/forums/t/561306/search-is-broken-no-matter-what-i-do/ - Hamluis.
Just noticed your post and took a look around to see what the fix is for broken sfc /scannow. I ran across a reference to this:
which apparently will resolve sfc /scannow difficulties. Not sure I believe it could resolve all of them, but... Anyway, this looks like it would be interesting to try (if I had a good image backup I admit).
Here is the link to the reference:
btw just reading around, I noticed that users with these problems were being instructed to run a repair installation of XP. Requires an installation disk, and it removes service packs and updates but doesn't touch drivers or personal files.
Edited by hamluis, 29 December 2014 - 10:03 AM.
PM sent new OP - Hamluis.