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Windows 7: Explorer.exe 20% cpu usage when idle


07 Jun 2013   #1

Windows 7 Ultimate
 
 
Explorer.exe 20% cpu usage when idle

Hey guys,

My sister recently noticed a drop in performance from her laptop.
She asked me for help and I tried to fix it but it seems I lack knowledge about the problem.
So here I am asking for help from anyone who might know how to fix this.

When on her laptop I did the following things:
I closed all programs in the taskbar and went to the processes tab.
There I found out about explorer.exe using 20 percent of the cpu.
I searched the internet for a fix for the problem.
I have scanned her computer with Microsoft Security Essentials and also tried CMD sfc scannow.

I ended up using Process Explorer. With that program I managed to kill the explorer.exe thread that uses the 20 percent of the cpu. So while that fixed the problem, every time she restarts the laptop the problem comes back.

So I hope someone can tell me how to permanently fix this without completely reinstalling Windows.


Thanks.


My System SpecsSystem Spec
.

07 Jun 2013   #2

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

Hollande25

Run DDS to see what you have running

Click here DDS

Click on Download Now button

When the download is complete . Drag the DDS program from the Downloads folder to your Desktop

Right-click the DDS icon on the Desktop choose Run as administrator to run the tool.

Place a check next to attact.txt and click Start . When done, DDS will open two logs
DDS.txt
Attach.txt

Save two logs onto your desktop and upload them with your reply

Don't zip the Attach.txt file even though it says to
My System SpecsSystem Spec
08 Jun 2013   #3

Windows 7 Ultimate
 
 

Thank you for your quick reply,

I have used DDS and got the following 2 files attached with this message.
I'm not sure about the run as administrator part though. I could not find the option to do so.

I really hope you can help me out with this.

Thanks again

-Hollander25


Attached Files
File Type: txt dds.txt (14.3 KB, 7 views)
File Type: txt attach.txt (8.5 KB, 6 views)
My System SpecsSystem Spec
.


08 Jun 2013   #4

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

Hollander25

Remove Ilivid from the browsers

  • In the url field type in “about:config” (without the quotes)
  • Type “Keyword.url” in the search box.
  • Right click it & reset it.
  • Type in “browser.search.defaultengine” in the search box.
  • Right click it & reset it.

  • Click wench icon on the browser toolbar
  • Select 'Settings'
  • Select 'Basics' -> 'Manage Search engines'
  • Remove ILivid from list

  • Open Internet Explorer, click on the gear icon at the top (far right), then click again on Internet Options.
  • In the Internet Options dialog box, click on the Advanced tab, then click on the Reset button.
  • In the Reset Internet Explorer settings section, check the Delete personal settings box, then click on Reset

Then run AdwCleaner

Click here AdwCleaner

Click on Download Now button

Save to the Desktop

Right-click on AdwCleaner.exe and choose Run as administrator

Click the Search button

Upload the AdwCleaner[Sn].txt in your reply.

Note   Note
The log file is at C:\AdwCleaner[Sn].txt
My System SpecsSystem Spec
08 Jun 2013   #5

Windows 7 Ultimate
 
 

I followed your steps and also removed Ilivid from the program list.
I've attached the adwcleaner file.

I really appreciate what you are doing for me.

I look forward to hearing from you.


Attached Files
File Type: txt AdwCleaner[R1].txt (2.1 KB, 1 views)
My System SpecsSystem Spec
08 Jun 2013   #6

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

Run the Delete

Close all open programs.

To run the program, right-click AdwCleaner.exe and select Run as administrator

Click on Delete and confirm the prompt.

After it finishes, the computer is restarted.

Upload the log saved at C:\AdwCleaner[S1].txt
My System SpecsSystem Spec
08 Jun 2013   #7

Windows 7 Ultimate
 
 

I did as you told again. It seems to have removed some trash, so that's good. Attached the log again.
However the 20 percent are still there

I just noticed the logs are in Dutch so sorry for that I hope it doesn't bother you too much.

So what can I do next?


Attached Files
File Type: txt AdwCleaner[S1].txt (2.3 KB, 1 views)
My System SpecsSystem Spec
08 Jun 2013   #8

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

When you scanned the PC with MSE did it find anything ?
My System SpecsSystem Spec
08 Jun 2013   #9

Windows 7 Ultimate
 
 

I remember finding something. I think it was a Java exploit. I did remove it.
I will scan again this night, just in case.

Thanks for helping me so far. My sister will leave tomorrow so I will not be able to look at the laptop with the problem till Friday/Saturday. So I can't really do much till than but I will definitely look again next weekend so any suggestions are welcome.

-Hollander25
My System SpecsSystem Spec
09 Jun 2013   #10

Windows 7 Ultimate
 
 

Scan found nothing, still looking for a way to get rid of the 20% explorer.exe
My System SpecsSystem Spec
Reply

 Explorer.exe 20% cpu usage when idle




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