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UAC not showing and desktop frozen when File Explorer needs an elevation, forcing a cold reboot

Anonymous
2024-10-13T22:11:52+00:00

Hi,

Since I upgraded my PC to Windows 11 2024 Update, elevating an access to a protected folder in File Explorer is impossible:

From a standard user account, whenever I click on the Continue button in the Access denied dialog box, the desktop background dims and... Nothing!

The UAC prompt never shows up and everything is frozen, forcing me to cold reboot if I want to use my PC again since I can't get out of the dimmed desktop.

This clearly looks like a bug.

Thanks for a quick fix.

Windows for home | Windows 11 | Security and privacy

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  1. Anonymous
    2024-11-03T16:48:19+00:00

    I don't want to disable UAC.

    But I found the culprit, it's actually a known bug in 24H2.

    I am using Windows Hello with my fingerprint reader to authenticate, and this is what is probably what is causing the problem to UAC:
    Windows 11, version 24H2 known issues and notifications | Microsoft Learn

    I guess I will have to wait until Microsoft fixes 24H2.

    Regards.

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  2. Anonymous
    2024-10-14T07:53:17+00:00

    Hi Charity,

    SFC and DISM did not find any errors (build is 26100.2152) and yet the problem is still there.

    Regards.

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  3. Anonymous
    2024-10-14T08:44:32+00:00

    Hello,

    I am not able to do a rollback.

    I am experienceing this problem since build 26100.1742 and the latest build (26100.2152) was installed by updating the entire OS with an ISO and the previous install has been cleaned with cleanmgr.

    Regards.

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  4. Solamillo Charity 20,260 Reputation points Independent Advisor
    2024-10-14T08:00:41+00:00

    Thank you for the information. Are you still able to do a rollback?

    Open Settings by pressing Windows + I.

    Go to Update & Security, then select View Update History.

    Click Uninstall updates and find the most recent update (look at the date).

    Right-click on it and choose Uninstall, then restart your computer.

    To pause future updates:

    In Update & Security, select Pause updates for 7 days to prevent the update from reapplying automatically. You can extend this period in Advanced options.

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  5. Solamillo Charity 20,260 Reputation points Independent Advisor
    2024-10-14T00:32:55+00:00

    Hello there! I am Charity, I'm an Independent Advisor. I'm glad to help you today!

    My apologies about that. let's try to automatically repair corrupted system files.

    Press Windows + R, type msconfig, and press Enter.

    In the System Configuration window, go to the Services tab.

    Check Hide all Microsoft services, then click Disable all.

    Go to the Startup tab and click Open Task Manager.

    In Task Manager, disable all startup items.

    Close Task Manager, then click OK in System Configuration.

    Restart your computer.

    Then, open Command Prompt as an administrator by right-clicking the Start button and selecting "Command Prompt (Admin)." In the Command Prompt window, type sfc /scannow and press Enter. Wait for the scan to complete; this process might take some time, and the tool will automatically attempt to fix any detected issues. Once the scan is finished, restart your computer.

    Next, open Command Prompt as an administrator again. In the Command Prompt window, type DISM /Online /Cleanup-Image /RestoreHealth and press Enter. Wait for the process to complete, as it might also take some time to repair the Windows image. Once the DISM process is complete, restart your computer.

    After completing these steps, try launching your applications again to see if the issue is resolved.

    Kind Regards,

    Charity

    Please note that things might need more than one reply to completely resolve your issue, as it will completely depend on the complexity of the question and the amount of detail that you have provided me.

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