computers twiching.....

this is really weird and ive never encountered it before... whenever i start windows, roughly 2-5 minutes after its fully loaded, every single second, it starts "twiching" by this i mean nothing happens for small intervals... any music playing skips, the mouse will not work, the whole thing shuts down for like .25 seconds every second... its really startin to piss me off...

ive checked for foregn processes, nothing is running but the basic windows ones... i have no idea whats happening...

You sound like you have a program running in the background that you do not really want.

Run the three I list in this thread and let us get some 2nd opinions. Nothing new for one antivirus program to catch what others miss.

Keep notes on what is found. It just might come in handy later.