System starts in BIOS mode following Secure Boot activation
System starts in BIOS mode following Secure Boot activation
Ensure your drive boots in UEFI mode as recommended (see the link provided). Note that your disk isn’t GPT formatted, so either follow the steps from the first link or perform this after entering Windows setup: press Shift + F10, open Command Prompt, type "diskpart", press Enter, then "list disk", select the correct drive, type "clean", press Enter, then "convert gpt" and press Enter. This will reset the disk to GPT mode before installation.
MBR2GPT generates the EFI boot partition, though it has certain constraints. https://learn.microsoft.com/en-us/window...mbr-to-gpt If your system supports MBR2GPT’s process, you won’t have to reinstall.