I have used NIS for years and my computer is about 3 years old now, not new but certainly not old. About 6 months ago, my computer started freezing up in the middle of any and every program I have. The mouse wouldn't move. Control, alt, delete did nothing & I would have to do a forced shut down. Half the time after a forced shut down, the computer booted in jerky spells that would take 10-15 min. to complete. I would always do anther complete scan, but no virus or trojans have ever been found, and spyware was deleted. I took my computer to a computer repair shop & they never had the same problem repeat for them.
Then about 6-8 weeks ago, the computer started making clicking sounds - a fairly steady click every 30 seconds and when I would open a program or a new web page, the clicks would be like a machine gun firing, lasting 10-15 seconds until the program or web page was open.
I'm wondering if I have something that NIS isn't catching or if my computer is going bad. I am currently using Windows Vista. I will be getting a new computer soon, I hope, and will need to transfer all my information from this computer to the new one. But if I have infected files, I will be transferring it to the new computer. NIS isn't finding the problem & the repair shop didn't find the problem. How do I find out if my problem is NIS or the computer?