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Windows 7: CPU 100% usage

18 Apr 2015   #1
russellhigley

Windows 7 Home Premium, 64 bit
 
 
CPU 100% usage

Can any one help. My CPU is running at or near 100% since last night, sudden onset, after watching a live game on my computer (I switched batteries and then went back to Ethernet connection). Advised, and I have disabling Windows Update, Windows Search, Gadgets and it was of no significant help. I have performed a Malware scan, TDSSRoot (Kaspersky) scan and am now in the process of performing a Kaspersky anti-virus scan with my installed program (which can take 12 hours). Could there be a program running in the background that I do not know about? I have a lot of instances svchost.exe running but do not have the skills to determine which I can disable. The cursor runs constantly in the background (the little circle turning all the time). Internet browsing is impossible, with pages hanging up, etc.

I posted this new thread an hour or more ago, but cannot locate it anywhere on the website, so I am trying again, here.

Anyone who can help me, I'd surely appreciate it.


My System SpecsSystem Spec
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18 Apr 2015   #2
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Open an elevated cmd window, then copy & paste the code below into it, and press enter.

The code exports the last 50 events from eventviewer into eventlog.txt in \Windows\System32 and we can examine that to see if we can trace the CPU usage.

Code:
WEVTUtil query-events System /count:50 /rd:true /format:text > eventlog.txt
Attach eventlog.txt in your next reply.
My System SpecsSystem Spec
18 Apr 2015   #3
sml156

Microsoft Windows 7 Ultimate 32-bit 7601
 
 

I would suggest to disable Kaspersky an reboot and see if that helps I tried Kaspersky yesterday on my laptop and it slowed it to a crawl try another ativirus
My System SpecsSystem Spec
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18 Apr 2015   #4
ZeDingo

Windows 7 Ultimate x86
 
 

Open a Run dialog with [Windows keyboard button] + R or type into the search box on your Start menu: perfmon.exe

Switch to the CPU tab and sort the Processes list by "Average CPU". If the name in the Image column says "svchost.exe", then open the Services list and sort that by "Average CPU" as well. That will at least tell us WHAT is using up your CPU.
My System SpecsSystem Spec
18 Apr 2015   #5
russellhigley

Windows 7 Home Premium, 64 bit
 
 

Thank you so much, Golden, I really appreciate your kindness. I am trying to figure out what you mean by "opening" an elevated cmd window. Does that mean the search programs and files in the lower left corner of my tool bar. I am now 60% through a total computer Kaspersky anti-virus program scan which has already taken 8 hours, reporting an estimated 4 hours left. I see you are in Australia. Very cool. You are very kind to help me. (I will soon have to go to bed (very late here right now, USA Eastern time zone, Saturday night, approaching Sunday morning.) If I can figure out how to access the information you are requesting, and then transfer that information to this "quick reply," I am only too happy to do so. ?Copy and paste will work??? First, I have to display the info you requested. Thanks again, Golden. Russell.
My System SpecsSystem Spec
18 Apr 2015   #6
russellhigley

Windows 7 Home Premium, 64 bit
 
 

And thank you, ZeDingo. I am trying to follow all of these instructions as best I can. Thank you all for your patience.
My System SpecsSystem Spec
18 Apr 2015   #7
russellhigley

Windows 7 Home Premium, 64 bit
 
 

I finally accessed event viewer and see a list of the events under "log summary," but am unable to copy and paste the log here for you to see. There are many logs available, and I am in Overview and Summary, Log Summary. I cannot find a way to put that information here. There are too many to open all of them, and some date back a couple of years, while many are from today's date, but are not in order.
My System SpecsSystem Spec
18 Apr 2015   #8
russellhigley

Windows 7 Home Premium, 64 bit
 
 

I am in the process of collecting the DM Log Collector as requested, and will attempt to upload it into the next message, if I can figure out how to do so. Thanks again, for your patience.
My System SpecsSystem Spec
18 Apr 2015   #9
russellhigley

Windows 7 Home Premium, 64 bit
 
 

Process completed DM Log Collector, as instructed. I will now attempt to attach the file from my desktop to this message. Thank you again, for your patience.

I got it! I was able to complete the process with your excellent instructions (email) and have successfully attached the DM Log Collector file below. Thanks a lot!! I really appreciate it. (My Kaspersky anti-virus complete scan has about 2 hours left. I am allowing it to continue to run to see if there is a virus on my computer, even though Malware and TDKKRoot remover found nothing.


Attached Files
File Type: zip USER-PC-Sat_04_18_2015_234304_07.zip (50.5 KB, 1 views)
My System SpecsSystem Spec
18 Apr 2015   #10
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

1. Click Start
2. In the search box, type cmd
3. In the list that appears, right-click on cmd.exe and choose Run as administrator
4. In the command window that opens, paste this:

WEVTUtil query-events System /count:50 /rd:true /format:text > eventlog.txt

5. Now press enter.
6. Go to C:\Windows\System32 and find eventlog.txt

Attach it here using this: (ignore the .zip file in the picture)

My System SpecsSystem Spec
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