- The drive can boot in UEFI mode only. It will not boot in BIOS/Legacy mode.
To remove this message you need to do one of the following:
- If your computer supports UEFI, go to your UEFI settings and lower or disable the priority of CSM/Legacy mode.
- Or Recreate the drive in MBR partition scheme where target system is BIOS (…….)
- Or Recreate the disk with Boot type: Non bootable
My suggestion the number 2 option.