Some time ago I posted this question about a problem I found in my PC since I updated my Windows 7 to Windows 10 Pro x64, namely that my Task Manager was constantly showing 100% usage of my CPU even though I really wasn't using that much in my process + services.

Now I was looking back at that problem and decided to open the Windows program where we can see CPU usage in greater detail and what I found out was that that program was telling me the CPU usage is over 100%! (while my processes definitivaly weren't using not even 10%!)

Here is the print:

Weird bug

Now that clearly is a bug. How can I solve it? I'll try to find a new drive for my Intel Processor in the middle time but I really don't imagine an old drive could be the issue behind this.

Note: despite the title edit, it's interesting to mention that the value shown in Resource Monitor isn't fixed: it keeps changing (tremendously) each second in a way it seems that is printing random values.

  • Run ProcessExplorer and look if it also shows high CPU usage: technet.microsoft.com/en-us/sysinternals/bb896653 Oct 4, 2015 at 14:55
  • @Momergil: Might be best to merge this with your original question then close this one as they are almost certainly caused by the same issue.
    – James P
    Oct 5, 2015 at 14:13
  • @magicandre1981 No: Process Explorer shows the CPU usage normally as I would expect (e.g. now is around 7%). It seems it's a bug with Task Manager/Resource Monitor then.
    – Momergil
    Oct 8, 2015 at 1:47
  • 1
    report the issue to Microsoft via the feedback app. Oct 8, 2015 at 4:20
  • @magicandre1981 Thansk for the tip, I did that already (assuming we are talking about the same app!)
    – Momergil
    Oct 9, 2015 at 11:30

1 Answer 1


That's exactly what happened to my computer. The blue circle next to the cursor kept on spinning while I was not doing anything. Then, eventually, I found many (several hundred and more) Java(TM) Web Start Launcher processes running according to Task Manager. Even though they took 0-1% CPU time each, they caused CPU and memory usage to reach 100%. Those processes are not listed at the top if you do sorting in Task Manager by CPU (but are easily noticeable since there a few hundred and more).

If this is your case, the following may help you as it did me:

  1. Windows Key + R
  2. Type msconfig and run it.
  3. Go to the Service tab
  4. Check Hide all Microsoft Services
  5. Click Disable all
  6. Go to the Startup tab
  7. Disable all items
  8. Optionally, in an administrative command prompt, run the following;

    Dism /online /cleanup-image /restorehealth

  9. Reboot

After this work, my computer has been running fine for last two days. Then I went back to the msconfig and I turned on the services I really need such as OneDrive and Dropbox stuff.

  • Ben N, Thank you for your editing. Forwarding your corrections to me helped me a lot. I will be more careful in answering. Please bear with me that I am pretty new in this environment. Feb 16, 2016 at 0:55
  • looks promising but didn't work Apr 11, 2020 at 15:54

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