Won't DeFrag

I'm a big fan of Diskeeper. If it were me, I'd just get it and use it instead. It has some great features that the built-in defraggers don't have, like running in the background, and not quitting when it encounters open apps (my biggest complaint with the built-in programs)....

As for Scan Disk, are you absolutely sure you don't have it ? It comes as part of Windows. Look in Start, Programs, Accessories, System Tools.

type "chkdsk /r" into a command prompt and do what it says.
that is the scan disk program for xp

I have disk cleanup, but no scan disk.

Whaddya know -- I don't, either (on my XP -- I have it on Win98).

Well, try what BigTuna says. That should work.

You can also find it (see this) :
http://www.pctechguide.com/tutorials/HDDMaint_Chkdsk.htm

And you can download the dll file from here:

http://www.dll-files.com/dllindex/dll-files.shtml?mfc42u

Put in in C:\WINDOWS\system32\