Windows 11 having major issues after updates

From the symptoms you describe (missing taskbar, black background, Settings freezing on audio/display/power pages, browser freezing when opening Microsoft account pages), this looks like a deeper system corruption affecting the Windows shell and several UWP components. At this point, uninstalling updates only hides the issue temporarily, and the fact that Windows can no longer roll back the update confirms that the component store is no longer healthy.

A repair install is the most reliable way forward.

1. “Reset this PC” (Keep my files) This will reinstall Windows while keeping your personal data, but it will remove your applications. It’s usually enough to fix this kind of corruption.
2. In‑place repair install using a Windows 11 ISO If you want to keep both files and applications, use an official Windows 11 ISO, mount it, and run setup.exe. This performs a full repair of system files, UWP components, and the component store without wiping your apps.
3. Clean install from USB Only needed if the two options above fail.

To investigate what happens during startup, you can check:

• Event Viewer → Applications and Services Logs → Microsoft → Windows → Shell-Core / Explorer
• Event Viewer → Windows Logs → System
• Reliability Monitor (search “Reliability History”)
• Startup apps in Task Manager (Steam auto‑launch may indicate a startup hook or delayed shell initialization)

But given the extent of the symptoms, a repair install is the most time‑efficient solution.