Quick Machine Recovery (QMR) in Windows 11 is a resilience feature that uses cloud-based fixes to restore PC user access during a boot failure.

Then, you can find the System Restore points, and you can choose a suitable one according to your requirements. Read: How to perform System Restore when Windows won’t boot to desktop ...

If your computer won't restart after installing Windows Update, you will have to boot into Advanced Options (WinRE) screen and take any one of these steps.