When I start my supersonic sc-1022kb I get a blue box asking to select boot device. If I select Windows Boot Manager windows boots fine. I have changed the boot option priorities in the bios to only be the windows boot manager (disabled option 2 which was UEFI: Built -in EFI Shell but when I restart I still get that box and option 1 is efi and 2 is windows boot manager
Secure boot is also disabled