Windows 10: CPU @ 100% in Task Manager.. but in error

Hey guys
Screenshot: Imgur

Seems to be happening since I installed Windows 10 on my machine. I am 100% sure it is in error as speedfan reports my CPU usage at 1/2% and I am seeing no problems when playing games such as CSGO and h1z1.

My motherboard does not have windows 10 drivers, however windows 10 seems to have found all my drivers.

I am not worried, but its a niggle.

:)

 

Windows 10 Task Manager shows 100% CPU but Performance Monitor Shows less than 2%

Thanks man! This lead me on the right track.

As someone else states the settings revert after a reboot in my case, however that is due to the power settings reverting back to another profile.

If anyone else has that problem they can refer to the following post where the issue can be solved with a little command prompt command or two and a single change in regedit.

More info here: Customized Power Options keeps changing back to default (the first anwser from Zaki j)

 

Windows 10 Task Manager shows 100% CPU but Performance Monitor Shows less than 2%

Unfortunately I do not have a fix for the problem, but I do have workaround and that is to use Microsoft's Process Explorer instead of Task Manager:

Process Explorer - Windows Sysinternals

Process Explorer does not suffer the same bug so it will show an accurate depiction of CPU usage. It is a more powerful and detailed tool than Task Manager and can be customized to show only the information that you want.

 

If your on 64-bit Windows, installing the 64-bit versions of drivers and software might help with cpu usage. For instance you can download a 64-bit version of Chrome.

What is unity.exe and what does it do?

 

Hi Swarfega,

The information pulled by task manager is incorrect, Unity is a client I use in the gaming world...
But if I had taken a screenshot at a different time, it would show another application using this usage, chrome, task manager, svchost etc, it flicks between different apps every 10-15 seconds

 

Here is another screen with Hardware Monitor and Speed fan
Screenshot by Lightshot

Not sure what I can do here...

 

At last, someone else with the same problem!
I assume the performance tab also shows 100% (including when showing individual cores)? Mine does.
What does your details tab show, does it have system idle at some decent high %? Mine does, which is correct.
What I believe is happening is that of the actual % of total cpu being used, it is displaying the % of that which is being used by each process.
Here's some example numbers:
The details tab shows 'system idle' at 90%, so in reality the CPU is 10% used.
In the processes tab, chrome shows 50% usage. In reality, what this means is that chrome is using 50% of 10%, which is 5%. I don't know what's causing this but the numbers fit this.
Process explorer seems to work ok:
Process Explorer

 

Finally haha...
Screenshot by Lightshot

In resource monitor my cpu usage shows its at 1billion%.. outrageous right? lol

I've tried a few things, that I found on the forums, but nothing works... which I assumed because the problems they had are different.

 

I'll have a look at resource monitor when I get home, that's a great find!
I see you have an Asrock P67 Pro, is it the Pro 3 per chance? Guess which mobo I have...
Are you overclocking? I am and task manager is reporting 3.3GHz instead of 4.2. I suspect this is the cause of the problem. I've not downloaded any mobo drivers yet from Asrock, have you?

 

OKAY!

Now are getting somewhere...

Yes I have a asrock p67 Fatal1ty Professional (ASRock > Fatal1ty P67 Professional)
I am overclocked from 3.2 to 4.8, Task manager also reports 3.2ghz, but I think that just gets its info from the model, not the actual clocks...

If it is an issue, maybe a chipset driver will fix it... however there is no chipset drivers available for my mobo since windows 8.. and no bios update since 2012 either

 

Someone here at work has task manager showing the actual clock rate on his laptop, it's changing all the time due to speedstep.
No drivers since 7 for me and the bios situation is bad too.
However, there may be some chipset drivers direct from intel, I can't try these for another few hours *Sad

 

Resource monitor is showing a silly % here too. No Intel drivers to download for me as far as I can tell.
This is a clean install, which I was hoping would solve this issue, but it hasn't *Sad

 

I am going to try get ahold of ASrock, it may take them a while to get back to me... I'll let your know...

I have also been getting some BSOD's with DPC Watchdog errors, which seems to be causes by drivers

 

I did have random freezes (hard reboot required) until I did a fresh install, no BSODs tho. I assume yours is also a fresh install?
I'm tempted to download the 7 drivers and see if they actually install, job for tomorrow...
Asrock are pretty good, I has a BIOS update issue (which was 100% their fault) and they quickly got a BIOS chip with the latest applicable version on it in the post to me.

 

Yep, also clean install.
I made a thread here.. maybe it will get some attention from the support team...
Fatal1ty P67 Pro + Win 10 = issues? - ASRock Forums

EDIT
I bit the bullet, and updated my bios... and walahh it is no reporting my CPU at 100%! Hopefully it will fix the host of other issues I had also...