Forum Discussion
Arcziwald997
Sep 14, 2025Copper Contributor
Update My windows 10 to Windows 11
Hello, Yesterday i try update my windows 10 to winsows 11 but when i try follow information on windows support that i need go to Advance Resertart and go to UEFI option i dont see this option. I loo...
Vamsker
Sep 26, 2025Iron Contributor
When you change the setting in your BIOS from Legacy to UEFI and save, the computer restarts. However, it cannot find a valid operating system to boot from because your current Windows 10 was installed in Legacy/MBR mode. The UEFI system expects a drive formatted in GPT partition style. Since your drive is MBR, the UEFI BIOS has nothing to boot from, so it either loops back to the BIOS settings or shows a black screen with a boot error.