Repair BCD File windows 8 or 10, Fix flashing cursor, fix none booting Windows 10

Rebuild the boot configuration file for Windows 8 or Windows 10
Fix black screen flashing cursor
Fix blue screen BCD error

COMMANDS:

diskpart
list disk
sel disk 0
list vol
sel vol 3
assign letter k:
exit
cd /d k:efimicrosoftboot
ren bcd bcd.bak
bcdboot c:windows /l en-gb /s k: /f all

Thanks

source
how to repair windows 10