Efi Shell Version 260 512 2021 Fixed
The motherboard lost its saved settings and reverted to factory defaults. Step-by-Step Solutions to Exit the EFI Shell
Step 4: Repair the Bootloader (BCD) Using Windows Installation Media efi shell version 260 512 2021
If your computer successfully boots into Windows after you change BIOS settings, but reverts back to the EFI Shell the next time you turn it on after unplugging it, your motherboard's CMOS battery needs to be replaced. Purchase a standard . Power down the PC and unplug it completely. Locate the silver, coin-sized battery on the motherboard. The motherboard lost its saved settings and reverted
If manual booting works, or if you want to prevent the shell from appearing: Power down the PC and unplug it completely
If your BIOS settings were recently reset, the storage controller mode might have changed, making your drive invisible to the bootloader. Enter your BIOS settings.