Can you please help me I think I have problems with spyware?

I have read that if you can find ctfmon.exe , spoolsv.exe , wmiprvse.exe and wuauclt.exe anywhere else in your computer except in C:WINDOWSsystem32 they might be spyware or virus.
Well,I found them in C:WINDOWSPrefetch and they look like this:
CTFMON.EXE-0E17969B.pf
SPOOLSV.EXE-282F76A7.pf
WMIPRVSE.EXE-28F301A9.pf
WUAUCLT.EXE-399A8E72.pf

Can you please tell me are they spyware and should I delete them or no?
By the way I have big problems with these in windows task manager (they keep opening all time).
I use Ad-Aware 2008
they are driving me crazy because they`re taking 99% of my cpu

These are fine as they come from Microsoft Office and from the Operating system itself, so if you remove them not all of Offices or your OS components will work. Add the Perfetch directory as OK like Win32. Your fine.

Oh, and if you want some information you can search for these by name. But all of the ones you listed came from MS themselves so these are ok. Lots of folks orignally thought these were spyware etc, but they aren’t. You should find corresponding nmes with out the -xxxxx.pf in the win32 directory. (Prefetch just loads them and they are needed.
http://www.edbott.com/weblog/archives/000743.html )