Steps:---
- Go to Start and click on run or use keyboard shortcut WIN+R. Then type gpedit.msc(small letters only).
- A window will be opened. In User configuration filter, click on Administrative templates.
- Then click on System.
- Next select Ctrl+Alt+Del options.
- Then select Remove Task Manager.
A new window will be opened. In settings tab, select "Disabled" option and then click on Apply.
That's it. Now you will be able to see TASK MANAGER after pressing Ctrl+Alt+Del.
Thank you.