Windows 11, ASUS TUF GAMING B450M-PLUS II

Toxtricity14 · June 13

Hi I have my pc for with specs of RTX3060, AMD Ryzen 5 3600x 32gb, I wanted it to upgrade it to Windows 11 and trying all the changes from the bios yet upon changing disabling CSM to force secureboot in order to up the PC health check for Windows 11, but the problem is It wont boot to windows after disabling CSM or changing UEFI/Legacy to UEFI mode only, I dont know what to do anymore I have tried all the tips from other forums regarding this, and I anxious since the end of service for Windows 10 is October, Kindly please help me to solve this problem in order for me to upgrade to windows 11 at ease.

GuiltySpark_ · June 13

16 hours ago, Toxtricity14 said:

but the problem is It wont boot to windows after disabling CSM or changing UEFI/Legacy to UEFI mode only,

If you intend to upgrade instead of fresh installing 11 (preferred), its most likely that your boot drive is configured with MBR. It needs to be GPT.

You can (and I have) convert an MBR drive to GPT using a built in windows command called, believe it or not, mbr2gpt.exe.

I've found it easiest to run this command from the command prompt while booted into a Windows instal USB (you can build one easily with the Windows 11 Media Creation Tool)

If you want to try it, you can attempt to run it on your live booted system which does work.

Once the drive is GPT, you should be able to turn off CSM (which allows compatibility with older MBR disks and should no longer be needed) and enable Secure Boot.