Cpu usage problem

[JoKr]

I have a 4 year old Acer x3990 and since i upgraded this pc from Windows 7 to Windows 10,its cpu usage is constantly at 100%,when i open up resource monitor,it says that my CPU usage is up to 1920395%,What!

I do not know why this happens,clean wipe does nothing,I did almost every solution available in the internet such as disabling apps or installing/updating drivers and nothing is working but,the cpu usage is normal when I run it in safe mode,just ask me for anything and ill provide,

[The Belgian Waffle]

I'd say that i's OVER 9000. Sorry. 

On a more serious note, you said "wipe", but have you tried reinstalling Windows? 

[JoKr]

Just now, The Belgian Waffle said:

I'd say that i's OVER 9000. Sorry. 

On a more serious note, you said "wipe", but have you tried reinstalling Windows? 

Yes,yes I did

[The Belgian Waffle]

Just now, JoKr said:

Yes,yes I did

Have you tried going back to Windows 7? 

[JoKr]

1 minute ago, The Belgian Waffle said:

Have you tried going back to Windows 7? 

No,I did not,but still,since reinstalling windows 10 does not solve anything,I think going back is just wasting more time,but when i run safe mode,its Cpu usage is normal

[The Belgian Waffle]

4 minutes ago, JoKr said:

when i run safe mode,its Cpu usage is normal

Well, this makes me think that it's a software and not hardware problem. But since you installed/uninstalled each driver, program, application, I can't come up with a solution right away.

[ShonRa]

Have you tried using 3rd party software to check cpu usage? Software like MSI afterburner.. The Windows software does get buggy sometimes due to other apps 

[Nord]

Acer has terrible driver support overall.

http://www.acer.com/ac/fi/FI/content/drivers

thats your device, correct?

 

As you can see no win10 drivers available whatsoever, meaning that win10 will have to make due with drivers not exactly written for the OS itself, which will work almost always but obviously not as well as the system would work on any actually supported OS.

Even worse, you cant even get windows 8 CPU drivers and such, windows 8 uses "re-used" or as acer would probably call it "upgraded" drivers from windows 7.

So by using windows 10 you are essnetially using drivers that have been made for windows 7, then have been "upgraded" to work with windows 8 and have no official support for win10 - meaning that the taskmanager "bug" will probably be the least issue you'll ever encounter

 

 

+Try what ShonRa posted. Another option next to afterburner would be HWInfo, which would if you are only interested in the CPU anyway even be better for said task.

[zanthros]

Have you check specifically to find out what process is being the resource hog? do a ctrl+alt+del and open the task manager and select "show processes from all users" and select the cpu % and it should show the highest usage process and as you go down the list the next highest process etc. etc. If it shows the lowest first then select the CPU% again and right click on it again.

 

Find the process that is using up so much of the resources and let us know the name of it.

 

Sometimes on a fresh install your system will be plagued with it checking for updates for hours on end and this has been known to cause 100% CPU usage for long periods of time.