Explorer.exe high CPU usage after latest update, Win11

Anonymous
2022-02-17T10:11:19+00:00

I am running Windows 11 Pro 64 bit version 21H2, build 22000.527.

After the latest update explorer.exe started to grab occasionally about 20% to 50% CPU power. Upon this high CPU time taskbar does not work, applications already on the desktop work though.

I have checked the desktop folder for any files missing the icon and I have also disabled OneDrive, did not help.

This problem is on almost all the time. It easies down occasionally but starts again. If I have the computer locked and log in again the problem starts immediately.

I do have some applications in desktop right button menu but they were there before the update without any problem(7-zip, WinZIP, NitroPDF etc).

This is quite annoying and prevents me working with the PC. The computer is Lenovo Thinkbook with 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz 2.80 GHz and 16 GB RAM.

Should I try to uninstall the latest update and is there a change that it messes up the operating system?

Windows for home | Windows 11 | Performance and system failures

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments No comments

52 answers

Sort by: Most helpful
  1. Anonymous
    2022-06-30T00:32:01+00:00

    I have the same problem, but the only updates i have are

    KB5013889

    KB5014697

    KB5014672

    And ive tried everything above and nothing seems to help. My computer is running at 100% cpu and it takes me 10 minutes to load and 10 minutes to open settings.

    Was this answer helpful?

    0 comments No comments
  2. Anonymous
    2022-05-28T20:21:36+00:00

    Hey all, check out the KB5014019 CUM for 2022-05-28. I think this issue is getting better. I turned off and on the Auto Hide, along with combo's of the Auto Hide and Show on all displays. The highest the CPU for the Explorer.exe got up to was about 5% for only 2 or 3 seconds and back down. I have been running with the last CUM: KB5013943 CUM on 2022-05-10, with only minor issues, with Auto Hide and Show on all displays. This latest CUM is looking promising. I sure hope so.

    Was this answer helpful?

    0 comments No comments