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Windows 7: Explorer.exe 50%+ CPU usage

11 May 2013   #1
pataya

Windows 7 Home Premium x64
 
 
Explorer.exe 50%+ CPU usage

Hi,

Since 2-3 days, explorer.exe goes often crazy and use 50%+ of my CPU. I notice it instantly because it makes my mouse lag (very slow / unresponsive / etc) and slow down the whole computer.

Killing the process solve the problem. But after 10sec-10min it comes back.

I tried to search solution online but couldn't solve it myself...

Even tried to launch Process Monitor and try to understand what's going on without success...

Does anyone have an idea ?

Thanks.

Pataya

Edit: I already did the 'SFC /SCANNOW' command but nothing
Edit²: The Process Explorer shows me this when it happens : http://i.imgur.com/KhzJfgu.jpg


My System SpecsSystem Spec
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12 May 2013   #2
dorian hawkmoon

Windows 7 Ultimate (x64) SP1
 
 

You should scan with a reliable antivirus &/or antimalware pronto. It's the first logical step. Then try to use Hijackthis and post results for experts to analyze.
My System SpecsSystem Spec
12 May 2013   #3
pataya

Windows 7 Home Premium x64
 
 

I did, didn't find anything.
But I think I fixed it.

I only tried to see what was happening with Process Explorer after my post (because Process Monitor didn't help me) and I searched online "uiautomationcore.dll explorer.exe cpu" and found this and tried to uninstall Clover which is the same kind of app. And now everything seems fine.

I'll update this post in 1-2 days, but I think that's fixed.
My System SpecsSystem Spec
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12 May 2013   #4
pataya

Windows 7 Home Premium x64
 
 

After a quick e-mail to the developer, this was indeed a bug with Clover. Bug has been fixed & one update will be released tomorrow.

Thank you dorian for your guidance.

Fixed
My System SpecsSystem Spec
12 May 2013   #5
dorian hawkmoon

Windows 7 Ultimate (x64) SP1
 
 

I am glad you fixed your problem
You can always tick off "Continue running background apps when Google Chrome is closed" in the advanced settings of Chrome, many apps take up unnecessary memory.
My System SpecsSystem Spec
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 Explorer.exe 50%+ CPU usage




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