In that case, you might want to set Task Manager to Always-on-top.
Alternatives to Task Manager
Method 1
Alt-F4
Method 2
Save a new text file to your Desktop and enter the following:
taskkill /f /fi "status eq not responding"
Save the file and change the extension from .txt to .bat.
Double-click the new batch file and it will close any apps that are unresponsive according to Windows.
Method 3
Create a keyboard shortcut for the command from Method 2, as described here: