A few times a day my CPU will jump to 99% usage, and it will stay there until I force a shutdown (via unplugging it). Below is a snap of the task manager during this time. I am certain a virus is not the problem. update I have found I can reproduce the problem by putting my network card under load. I have tried 3 different wireless cards (usb adapter), and it happens will every one of them.
What is installed?
- Firefox 3.5
- Chrome Beta version
- MS Security Essentials
- Win 7 Ultimate (64bit)
I would assume there is a faulty driver, but I have no idea where to start. Does anybody know what the best thing to do is in this situation?
updated the screen shot to show process explorer while the problem is occurring. Does that help? Look at the Hardware Interrupt/DPC usage. What would cause that to be so high?
And this pic is the same thing while the system is fine