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Windows 7: Upon fresh boot, 4 CPU core is running at 100% for 65 min?

15 Jul 2016   #1
MDRI

Win 7 64 bit, 6.1.7601 Service Pack 1 Build 7601
 
 
Upon fresh boot, 4 CPU core is running at 100% for 65 min?

Upon fresh boot, 4 CPU is running at 100% for 65 min?
Thanks for suggestions to my postings!

When I start up my computer, I notice that the HDD LED is constantly in the ON state, as oppose to the usual blinking. When the HDD LED stays on constantly, it pretty much indicates, to me, that the CPU running at 100%. At this point, Key board/mouse won't respond.

I opened Task Manager and no other programs were active at this time. I find all (4 core) CPU at 100%. I find task manager at high CPU use. Even if I close task manager CPU usage is not coming down.

I did adjust the affinity for task manager, but no improvement.

I ran sfc /scannow, chkdsk. Nothing reported .

What am I missing here?

Is there a way to get memory dump/memory snapshot to figure out, what is going on?

Is it possible for some programs to run without showing up in task manager?

Thanks for sharing.


My System SpecsSystem Spec
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15 Jul 2016   #2
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by MDRI View Post
...Is it possible for some programs to run without showing up in task manager?...
Have you checked the box "Show processes from all users"?
My System SpecsSystem Spec
16 Jul 2016   #3
MDRI

Win 7 64 bit, 6.1.7601 Service Pack 1 Build 7601
 
 

Yes, I did. Nothing showing as high CPU use.
My System SpecsSystem Spec
.

16 Jul 2016   #4
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Try using msconfig to disable all the extra stuff loading at startup. Reboot and see if the high CPU usage continues. If not, add the things you disabled in msconfig back in one at a time until you find the culprit.

If you've disabled everything via msconfig and you are still getting the high CPU usage I would look through the Windows logs. I'd also do a couple of different malware scans.
My System SpecsSystem Spec
16 Jul 2016   #5
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
I noticed a lot of activity after startup too or at least more than usual,
Of course windows updates checks for updates shortly after startup and I'm pretty sure it's the cause in my case
It isn't using 100% but does spike to 50% and that is higher than in the past
See if you have installed the newest update client which was included in KB3161608

If so the easiest test would be switch your update settings to Never check for updates and restart the machine.
Verify the services are not running if the issue remains.
Background intelligent transfer services
Cryptographic
Windows installer
Windows update
My System SpecsSystem Spec
17 Jul 2016   #6
MDRI

Win 7 64 bit, 6.1.7601 Service Pack 1 Build 7601
 
 

Quote   Quote: Originally Posted by profdlp View Post
Try using msconfig to disable all the extra stuff loading at startup. Reboot and see if the high CPU usage continues. If not, add the things you disabled in msconfig back in one at a time until you find the culprit.
How/where can I find the stuff loading at startup?

Are there any list available under windows folders, that list all startup loading programs?

Thanks for sharing.
My System SpecsSystem Spec
17 Jul 2016   #7
tommyg562000

Windows 7 Professional 64bit
 
 

The best fix for this issue is upgrading to Windows 10.

My System SpecsSystem Spec
17 Jul 2016   #8
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by MDRI View Post
...How/where can I find the stuff loading at startup?

Are there any list available under windows folders, that list all startup loading programs?...
Go here: Startup Programs - Change

Once there, scroll down to Method Three.

Quote   Quote: Originally Posted by tommyg562000 View Post
The best fix for this issue is upgrading to Windows 10.
Don't you think the poor guy has enough troubles?
My System SpecsSystem Spec
18 Jul 2016   #9
MDRI

Win 7 64 bit, 6.1.7601 Service Pack 1 Build 7601
 
 

Thanks. I find Windows update service is already stopped. I reviewed startup programs change ==> Method Three

Step
10. Click on the Boot tab, then check the Make all boot settings permanent box and click on OK. (See screenshot below)

It says I cannot do undo after choosing this option.

How do I test, which one (startup program) causing the issue in my situation?

If the picked one did not resolve my cpu 100% issue, I need to bring it back and pick the next one etc.

Thanks for sharing.
My System SpecsSystem Spec
18 Jul 2016   #10
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Just stop after Step 9.

The streamlined version:

Uncheck everything in the Startup tab. Apply and reboot. You will get a noticed that you disabled some stuff. Just say OK.

Check to see if your problem has gone away. If it hasn't, go back to msconfig and re-enable everything. (Because if it was one of your startup programs, the problem would not still be there.) At this point we'll have to try something else.

If the problem is gone with all startup stuff disabled, we need to find out which one(s) are the culprit. Go back into msconfig and re-enable ONE of them. Apply and reboot.

Repeat the process until the stinker reveals itself.
My System SpecsSystem Spec
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 Upon fresh boot, 4 CPU core is running at 100% for 65 min?




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