You will do this blindly:
Restart your PC, logon and wait for the black screen to appear
1) Make Ctrl + Alt + Del: nothing appears on screen, yet the task manager was opened. We'll have to do the rest in the dark, and this is where we thank the keyboard shortcuts) (to be safe, you can do the same operation on another pc to side to see what it does)
2) Make Alt + F: it opens the File menu of Task Manager, but we still see nothing
3) To Enter: it opens the "Create a new job," but we still see nothing
4) Type "cmd" then "Enter "
5) Then restart your pc It rebooted normally, and all is well.