How to force close a frozen program in Windows 11
This tutorial will show you step by step how to force close a frozen program that is not responding in Windows 11.
Methods:
How to close a program that is not responding using a keyboard shortcut
The easiest and quickest way to force close a frozen program is with the Alt + F4 keyboard shortcut.
1. Make sure the window of the program you want to close is open.
2. Press the Alt + F4 keys on your keyboard simultaneously.

How to close a program that is not responding using the Task Manager
1. Press the Windows + X keys on your keyboard simultaneously or right-click on the Windows start menu button.
2. Click on Task Manager.

You can also open Task Manager by pressing the Ctrl + Shift + Esc (Escape) keys on your keyboard simultaneously.
3. If the “User Account Control” window appears, you click Yes.
4. In the “Processes” section, you right-click on the unresponsive program you want to close.
5. Click on End task.

References:
https://www.laptopmag.com/how-to/how-to-force-quit-in-windows-11
https://www.guidingtech.com/top-ways-to-force-quit-a-program-on-windows-11/
https://www.lifewire.com/force-quit-programs-in-windows-11-5194519