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CPU usage suddenly high for no reason

M

maxxjulie

Junior Member
Ok, I've been having trouble with the My Documents folder on one of my hard drives. I thought it was a virus or trojan so I tried every program there is for both. It hasn't fixed the problem. I opened the task manager just now and noticed when I open the folder my CPU usage gets really high and the explorer.exe process is the major culprit. I don't know what happened. I've had a pc for almost a year with no problem till now. I've uninstalled every program I don't need so I don't have much on my pc. In general, my computer has become slower suddenly and I'd appreciate some advice.
 
With regards to the CPU maxing out, it's more than likely that you have a corrupted video file in that folder. If you can find the culprit, delete it from a command prompt and that should sort it.

The high CPU usage is because Windows Explorer is trying to determine what file type the file is, and/or get a thumbnail for it. Because the file is corrupt, it's having to seek through the entire file to find something that it recognises.
 
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