My laptop no longer starts the screen does not work. START MENU F1 SYSTEM INFORMATION, D2 SYSTEM DIAGNOSTIC S F9, BOOT DEVICE OPTIONS, F10 BIOS Setup, F11 SYSTEM RECOVERY
If there's no defect:
Remove all USB devices, press F9 at startup or go to "BOOT DEVICE OPTIONS" and search for an entry that has "HDD" in its name, or search for your hard drive in the menu that appears and click it, see if Windows then starts, if so google for "Change BIOS boot order", and change it to the hard drive found.
If there's a defect:
Create a bootable Linux USB stick with another computer, change the boot order in the BIOS (google for your laptop model + change the boot order), and save your data from the Linux distribution of your choice, provided your hard drive is still working!
After that, if it is absolutely necessary to have Windoof again, and you just shot your laptop to pieces due to a software problem, I advise you, if you don't want to be spied on by Microsoft, to install "Windows 10 Ameliorated" (https://ameliorated.info/), if you but are open to new and secure things, Linux would be appropriate!
If your computer has a hardware defect, remote diagnosis via chat will probably be too time-consuming, but you can unscrew the hard drive (google for: "laptop model" change hard disk) and install it in another, at best desktop computer, to restore your Back up data!
