The "End Task" button cannot terminate system processes such as File Explorer, for that you will still have to go through the Task Manager which kind of makes sense.

Windows PC user annoyed about Task Manager jumping around gets told how to fix it with one button—by the developer that built the application 30 years ago News By Jacob Ridley published May 21, 2024 ...

Windows 11 allows you to force quit unresponsive apps using the Task Manager. However, there's an alternative method that's even faster.

Restarting your Windows computer can resolve temporary issues that might be causing high CPU usage. Doing so will close all apps and services, giving the system a fresh start. Additionally, dust ...