Yea, that means reinstalling your Windows. Not much else you can do about it if sfc fails.
Also, sticking with XP is not a very good idea either. It will become unsupported in 3 years. So you might wait for Windows 8, but then you will pretty much be forced to update.
Also, sticking with XP is not a very good idea either. It will become unsupported in 3 years. So you might wait for Windows 8, but then you will pretty much be forced to update.