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Windows 7: Constant CPU Usage - Have tried so many things

21 Jan 2015   #1
voide

Windows 7 Home Premium 64 bit
 
 
Constant CPU Usage - Have tried so many things

Hey Guys,
I'm going insane over here. I initially noticed today that my PC fan was running like there was a load on the CPU. After looking at the task manager, I found out the CPU had a very constant usage of about 40% when everything was closed and the cursor had that little circle by it the entire time like it was waiting for a process. I went into processes and closed just about everything I could possibly close and it was still a constant 30-40% on all 4 cores (I have a Phenom II X4 965). First thing I tried was a restart and that works for about 5-10 minutes. After that, something starts up and the 30-40% CPU utilization comes back. I scan for viruses and malware with Security Essentials and Malwarebytes (only two programs I use) and they both find nothing.

So I started doing tons of google-foo on just about every process I can find on the top of the usage charts/resource monitor. I find a forum suggesting it was Security Essentials so I uninstalled it, nothing. Forum suggesting it was Windows Defender so I disabled it, nothing. I found forums suggesting to do this and that with no avail. I did a system restore to a point a few days back and it still happens. I checked the memory and the hard disk for errors and both passed. I literally cannot figure out how to solve this beyond just doing a format and reinstall, which I don't want to do if possible. I have quite a bit of stuff on this computer that I'd like not to have to lose or move around.

I appreciate any help I can get...I have never encountered an issue that I couldn't fix with a good Google search term, but after putting in around 5 hours troubleshooting this, I need some suggestions. I've attached an image of my resource monitor for anybody that's curious, if that helps. Thanks again.




Attached Thumbnails
Constant CPU Usage - Have tried so many things-cpu_usage_screen.jpg  
My System SpecsSystem Spec
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21 Jan 2015   #2
richc46

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install
 
 

Scan with Malwarebytes
Run a full antivirus scan. Although you said that you did this. Update and try it again
Scan with Eset online. This is really a good one finds a lot.
Then when in task manager, be sure that the box that says show for all users is checked in lower left.
If that does not help try a clean boot
Troubleshoot Application Conflicts by Performing a Clean Startup
My System SpecsSystem Spec
21 Jan 2015   #3
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

I see an unusual amount of DPCs. Run this program and see whether you get red spikes.

DPC Latency Checker
My System SpecsSystem Spec
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22 Jan 2015   #4
Tookeri

Windows 7 Pro 32
 
 

It would help to sort on the CPU column to find out if there's any specific process that takes much CPU
My System SpecsSystem Spec
22 Jan 2015   #5
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by Tookeri View Post
It would help to sort on the CPU column to find out if there's any specific process that takes much CPU
He sorted on the 'average CPU' which is actually more telling.
My System SpecsSystem Spec
22 Jan 2015   #6
Tookeri

Windows 7 Pro 32
 
 

Ah thanks, missed that. I thought it was strange that no one hadn't suggested it, but better safe than sorry
My System SpecsSystem Spec
23 Jan 2015   #7
voide

Windows 7 Home Premium 64 bit
 
 

Update: So this is fairly embarrassing. I ended up checking to see if I had any windows updates and there was 1 urgent and 3 optional so I had windows install all of them. After a reboot and a full day with it, it seems like everything is back to normal. I guess it's a good reminder to check all of the little things first...

Thanks for all the help, guys!
My System SpecsSystem Spec
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 Constant CPU Usage - Have tried so many things




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