We will be discussing the following two methods by which we can change the BIOS Mode from Legacy to UEFI without reinstalling Windows 11/10: Convert MBR to GPT ... and use commands like “mbr2gpt ...

Enter the UEFI utility to find the Secure ... or F10 (different systems use different access keys). If you can't get in, boot into Windows and go to Settings > Recovery > Restart now.