My processor is spiking for no explanation lately, why?

I hold an Intel Pentium D 3.0Ghz processor and lately, for no apparent origin it will spike to 80-100% usage for a split second(enough to skip music, video or the likes). It does it regardless of what programs I have undo, firefox, IE, winamp, or anything. I'm running Windows XP. I was thinking possibly I had spyware, but I can't appear to locate any at all. Any design, or possible fixes? It's quite annoying and I'd approaching to fix it.



Intel Pentium D 3.0ghz CPU

1.5gb DDR2

WinXP Home SP2

GeForce 6600 VCPU 256mb

My processor is spiking for no explanation lately, why?

sounds like it could be nvidia's drivers possibly.



a good matured uninstall reinstall display drivers might work.



if not,



try using window defualt display driver instead and see what happens.
Have you installed a program lately? it's possible that your resources are a bit low
check out whats running contained by the background, could be cause by a program startup or worm, disable any start up programs you dont need, scan for spyware and adjectives that other good stuff.