After starting the machine I get some type of freeze, it usually happens 3-5 minutes after booting into windows.
I have ruled out application as the cause and specific browser as it freezes no matter what window is open and it will freeze even if nothing is open.
I am not sure what is causing this, when it happens the cursor stops dead, any applications open freeze at that instant and nothing will respond after that. The harddrive does not stop during this as far as I can tell.
Hitting reset is the only way to get the computer to work again (for another 3-5 minutes) but startup after a freeze is difficult quite often taking 2 or 3 attempts before windows will load.
I have ruled out the following as the cause.
malware (got a hijack log done in safe mode before it froze again and computer is clean)
specific application (happens with them all)
I need help on this one please, haven't struck this problem before.
Remember I get about 3 minutes before everything freezes so any scans asked for might not be possible.