I've had a situation very similar to yours. After several reinstall of the OS, I would still be experiencing this problem. I was kind of on the verge of giving up what with my laptop freezing when I launch a program and it could be launching something as innocuous as IE, Firefox, or maybe some other programs and suddenly while using it I would hear a sound (like an exclamation type windows sound) and the CPU cycles with be very high and stay that way. And even trying to call up Sysinternal Process Explorer to find and kill the offending program would be next to impossible, since the CPU is tied up and Process Explorer takes forever to come up.
I tried to use Mouser's Process Tamer to solve this without success.
I had almost pulled up my last bit of hair after many months of hard resetting my laptop and reinstalling until I stumbled onto a most unexpected solution.
I thought perhaps my laptop needed to go on a diet by removing all the programs I rarely used.
I hit pay dirt with the 1st casualty in my diet - I removed Windows Desktop Search and I was no longer in 100% CPU hell anymore.
I cannot explain why that is so but that is just so. I have been out of 100% CPU hell for 20 straight days now and still counting.
See this thread below :
Dieting my laptop, starting with Windows Desktop Search -But I'm stuck, Help !!
"I've got an incredible bonus from removing Microsoft Windows Desktop Search.
Part of the reason for wanting to send my laptop on a diet was because my Laptop was inexplicably hanging every now and then.
I wasn't sure what it was due to. I had hoped that reducing the over-load on the processor would reduce these hangs and reboots.
But ever since I removed Windows Desktop Search, I have not had a single instance needing a reboot compared to at least 4 or 5 reboots everyday. I hope I'm not speaking too soon.
I had been dreading the day I would be forced to reinstall the laptop especially since I had been forced to do that only a few months ago.
From now on, I would go lite when possible and try to remember to remove the software I rarely if ever use. Or better still, ask myself do I really need a particular software before I install it (them)."https://www.donation...82.msg70036#msg70036