CPU at 100% usage

oldtech

Small problem, through task manager I see that my CPU usage is 100% all the time. Under the processes tab its the explorer.exe thats taking 90 to 60% of the CPU, I have watched it for a while and it never clears. Virus scan done , spybot scan done, defragged and run sfc /scannow. All fans good ,tempetures in the bios monitor normal. Any ideas gentlemen ??

WanBoy67

Try Spyware Doctor - the trial will at least show you any spyware it has detected which you can remove when you buy the license. It's among the best for Spyware detection.

Any Microsoft/Windows Updates installed recently?

snadam

try Process Explorer

Its free and downloadle from Microsoft. Its task manager on steroids. IT gives you a more in depth analysis of each process. Might give you a better idea what exactly is causing the usage problem. Check out that link and there should be a downloadble link on that page as well.

helped me out a few times.

JDMurray

Try logging into another user account on the same computer. If explorer.exe does not go to 100%, the problem is being caused by a program (shell extension) that is load into explorer when the other user logs in. Check the Run key under HKEY_CURRENT_USER to see what programs are run when explorer.exe starts. It's best to use the msconfig program to do this.

A key to solving this problem might be remembering what software you installed just prior to this problem occurring, new software that you ran, or new Web sites that you visited.

oldtech

I did get rid of my anti virus for a week and suprise , suprise
I got caught out. Playing with various registry tools I think I manage to .. well make a mess of things. i take note of your anwsers , thank you but a re install was needed...you get what you deserve