How to Troubleshoot System Interrupts High CPU Usage Problem in Windows PC

Believe it or not, computers can only do one thing at a time. They just do it really fast, which makes it seem like they’re multitasking. Your computer hardware has to work hard to perform its tasks. Sometimes they have to interrupt other tasks.

This is similar to children interrupting their parents. Children’s needs are also important, but getting an adult’s attention can be enjoyable or disruptive. The same is true of hardware system interruptions.

What causes ‘system interrupts’ high CPU utilization?

  • If system interruptions are taking up more than 5-10% of the CPU, we have a problem. This could be due to a hardware or driver problem.
  • Sometimes it is a huge delay for the processor to loop.

How to solve the problem of the system interrupting when the CPU load is high?

Check or update your hardware drivers

  1. Click on Wins Start -> go to Settings -> Update & Security.
  2. Go to the Windows Update section.
  3. Check to see if a hardware driver update is available.
  4. If so, click Next to update all drivers.

Disable internal devices

  1. Press the Winkey + X key combination.
  2. Click Device Manager on the menu.
  3. Locate the network adapters and expand the dialog box.
  4. Right-click the network adapter -> and select Properties.
  5. Select Advanced -> under Properties, scroll down to Magic Bundle Wakeup and Pattern Match Wakeup.
  6. In the drop-down list, successively set the values to Disabled.
  7. Click OK to save the settings.

Disable sound effects

  1. Go to the taskbar and right-click the speaker icon (sound icon).
  2. Now double-click the default device (speaker) -> open Properties.
  3. Click the Extensions tab.
  4. Check the “Disable all sound effects” box.
  5. Click Ok to save the settings.

Frequently Asked Questions

  1. Unplug or disconnect all external devices.
  2. Check the hardware drivers.
  3. Disconnect internal devices.
  4. Eliminate faulty hardware.
  5. Deactivate the sound effects.
  6. Update the BIOS.

It may seem that way, but interruptions are not a bad thing. They are used to correct errors or for simple actions such as reading keystrokes or mouse movements. Typically, the system interrupt process shows less than 1% CPU usage in the Task Manager. Depending on the situation, it can range from 5 to 10%.

  1. Reboot your computer.
  2. Update drivers, check for Windows updates.
  3. Disable quick startup.
  4. Disable the Magic Bundle.
  5. Disable one hardware device at a time.
  6. Check for hardware errors.
  7. Update the BIOS.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.