My CPU keeps shutting down without warning. I try installing Spybot but it won't let me - "An error occured while trying to copy the file". This is despite the fact that I have downloaded the setup file several times. Incidentally I also cannot install several other applications. also without sucess. My browser (Morzilla) also shuts down frequently after an error message.

I used Lavasoft and Doctor Spyware to scanned. However my problem is still not resolved.

Any help would be very much appreciated.