My laptop had hung up and there was no way around switching it off with the power button
Windows won't start now
He repaired it for 2 hours. No success
reset with and without data does not work
Jump start didn't work either
anyone else an idea?
Remove the Bios battery for 5-10 minutes.
Where does she sit with a laptop?
At the inside. To do this, you have to remove the back wall. Most of them are easy to reach. On some, however, it is under the keyboard. How it is with you, I have no idea. Or you can try the "BIOS Reset" directly in the BIOS. Is called "restore default settings".
Another variant would be the "safe mode" via the "extended start options." You can get there with F8 or F10 during the boot process.
I took the battery out and put it back in.
now the boot menu always starts. And when I click Windows Boot Manager, the menu disappears for a moment and then reappears