Changing BIOS from Legacy to UEFI/BIOS so I can use Win 11 on this PC

error

type
C:\Windows\System32>
bcdedit

reg query HKLM\SYSTEM\CurrentControlSet\Control /v FirmwareBootDevice


you have to leave diskpart by exit first

The old EFI on partition 2 is still active.
Reboot first

Pentagon said:

The old EFI on partition 2 is still active.
Reboot first

And then do the same entries over? or?

and then only

reg query HKLM\SYSTEM\CurrentControlSet\Control /v FirmwareBootDevice

OK
diskpart
sel disk 1
list par
exit


bcdedit

C:\Windows\System32>
bcdedit /set {bootmgr} device partition=\Device\harddisk1\Partition3

watch the response