High CPU usage in Sleep mode

Hello,

Since a few weeks I'm experiencing this occasional issue on my laptop. When I click on Sleep/Shut down in the Power menu or after the sleep timeout, instead of normally going to sleep (or shut down), the screen will go black and the fan will start to go high-speed. It gets out of this "agony" state only when the battery runs out or I force a shutdown by holding the power button. I've also tried the Win+Ctrl+Shift+B trick, but that didn't help either.

I couldn't find out which program is causing this yet, as I had no apps running in the foreground when the issue occurred, and the background apps have never caused trouble, so how would you do that?

Thanks in advance!

System information:

Processor: AMD Ryzen 5 5500U with Radeon Graphics 2.10 GHz

Installed RAM: 16,0 GB (13,8 GB usable)

Edition: Windows 11 Pro

Version: 24H2

OS build: 26120.2415

Hello, IqniteTechnologies

Welcome to Microsoft Community.

Even though it might seem like background apps aren't causing any issues, they can actually lead to system problems in certain situations. It's a bit presumptive to assume they can't cause trouble. I suggest trying a clean boot. This is a troubleshooting technique that helps identify software conflicts by starting the system with only the essential drivers and startup programs. This way, you can see if a third-party app or service is causing the issue. If the problem goes away after a clean boot, it likely means a third-party program is to blame. You can then gradually enable the disabled services and startup items to pinpoint the exact software causing the problem. These steps might seem a bit complex at first glance, but it's important to follow them carefully to avoid unnecessary complications.

How to perform a clean boot in Windows - Microsoft Support

Checking the sleep report is also a useful approach. The sleep report provides detailed information about what happens when your system enters and exits sleep mode, including which processes are still running and any abnormal activities. To generate a sleep report, search for Command Prompt in the Start menu, run it as an administrator, and enter the following command:

powercfg /sleepstudy

The sleep report will usually be saved in this path:

C:\Users\[YourUsername]\Documents\SleepStudy

You can open the HTML file in this directory with a browser to view the detailed sleep report. If you find the report hard to understand, you can share it with me using a cloud service like Google Drive or OneDrive, and I can help you analyze it. This way, we can more accurately identify the root cause of the problem.

Yuhao L

Microsoft Community Technical Support

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Hello,

Thank you for your quick response. Although a clean boot would help if the issue happened consistently, in this case it doesn't really help, as I don't know which programs are running when the issue randomly happens in the first place.

The sleep report though is what I was looking for, I'll try it out later.

Thanks for the help!

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OK, let me know if you find anything.

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Last updated April 17, 2025 Views 188 Applies to: