Yes. But to change it back, you need to be able to boot some linux system in UEFI mode, so as to have access to the “efibootmgr” command. So finding a USB or DVD or CD or similar that you can boot in UEFI mode is the key to solving your problem.
Yes. But to change it back, you need to be able to boot some linux system in UEFI mode, so as to have access to the “efibootmgr” command. So finding a USB or DVD or CD or similar that you can boot in UEFI mode is the key to solving your problem.