CPU usage suddenly high for no reason

[maxxjulie]

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.

 

[imported_Phil]

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.