Unable to access parts of Windows UI after updating motherboard BIOS & latest Windows Update

Asmodeus 20 Reputation points
2026-08-21T13:15:59.0433333+00:00

Hey, here's my current predicament. I installed the latest Windows 11 update 12th of August (KB5121003) and today updated my motherboard BIOS to its 2026 version.

After updating, I found several oddities in the way Windows behaved. I could operate programs like Discord, Chrome, Edge just fine. However, accessing parts of Windows Explorer and Task Manager was impossible. I could hover down and it'd show my hidden task bar, but I couldn't click on any of the icons. In Explorer I couldn't manipulate the top portion of the interface; I could click on folder icons and access the context menus, but I couldn't open new tabs or manually return to previous locations with the arrow buttons.

Similarly when I tried restarting Explorer from the Task Manager, I couldn't interact with the left hand sidebar, only the program list and the search box at the top.

After doing some testing, I found that by pressing the Windows Key, I could open the Start Menu which worked fine. Similarly, ALT + TAB let me cycle through various windows. Programs installed worked otherwise normally.

Windows for home | Windows 11 | Desktop, Start, and personalization | Other
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Answer accepted by question author
DaveM121 928.6K Reputation points Independent Advisor
2026-08-21T13:51:29.1366667+00:00

1

The BIOS update is unlikely to be linked with the problems you are experiencing, the Windows update semes to have resulted in corruption in the Windows system.

The best first option is too pen the Settings App, go to Windows Update - Update history, scroll to the bottom and choose 'Uninstall Updates' then form that list, uninstall the update that was installed that caused the problems.

2

If that does not resolve the problem.

Open the Settings App.

Go to System - Recovery.

Click the 'Reinstall Now' button in the 'Fix problems with Windows Updates' section and wait for that process to complete.

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  1. Asmodeus 20 Reputation points
    2026-08-21T13:29:40.29+00:00

    I tried the Windows Update troubleshooter, but its UI is something I cannot interact with. Seems whatever this issue is, it's affecting that app's interface too.

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