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I've been trying to find a solution for a while and decided to ask here for more help. I've noticed that my CPU usage is pretty high when idle, even after a cold reboot of the computer:

Task Manager View showing "System" and "System interrupts" causing a high CPU load: enter image description here

I've tried to dig deeper and used Processor Explorer to get more information, which, strangely enough, shows that "System interrupts" uses up more % of the CPU than the "System" process:

Process Explorer showing that "Interrupts" is taking up 20% of the CPU load: enter image description here

Next I've tried to narrow down the causes of the interrupts by using the Windows Performance Recorder and analyze the graph using the Windows Performance Analyzer (can't post the screenshot due to not having enough rep, but it looks like hal.dll is causing the most interrupts, but less than the 20% seen with Process Explorer)

Any suggestions how to proceed?

Information about my computer:

  • Windows 10
  • Intel Core i5-4790k
  • AMD R390 GPU
  • 8 GB Ram

I've updated the GPU and sound drivers and Windows is up to date.

I say Reinstate Monica
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jaorg1234
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1 Answers1

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Somehow it got resolved by itself. I did not change anything, but now both processes above use up a negligible amount of CPU power. This problem has plagued me over the last week, so I'm happy regardless that I don't know what caused this issue and how it got better.

Thank you, both RamonRobben and Twisty for your help :)

jaorg1234
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