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Explorer at 100% CPU Usage

deadseasquirrel

Golden Member
My first cross-post. Putting it over here also since I'm sure it has a lot to do with the OS and DLLs.

Specs:

AXP 1700+ (166*13.5)
2x 512MB Samsung pc2700
FX5900 Ultra 256MB
Win XP SP1

Every other day or so, Explorer.exe will peg CPU usage at 100% and, naturally, nothing else responds. I can END TASK in Task Manager and kill it, then rerun it, but not only do I hate doing that (lose most system tray icons, etc), but I also don't want to have to teach my wife and son how to do that (it's his computer and he's 7).

I used Sysinternals Process Explorer to keep an eye on it and was able to take this screenshot of the crash in action.

See the threads in Explorer.exe on the right? It looks like that top one is the problem (the stack is in the window below that one). So I KILLed that thread. Usage immediately went back down to 0%.

One thing I noticed, though, after I killed that thread, was that I pasted the print screen shot into Paint and saved the JPG to the desktop. It didn't show up. I had to refresh the desktop to see it. And have to keep doing that whenever I change anything on the desktop.

Anyone able to help troubleshoot why this happens? It's been happening for quite some time, but I've just now been annoyed enough to investigate further.
 
Have you done both an anti-virus and spyware scan using the latest definitions? That would be the first thing I'd do.
 
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