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#21
You are using EFI firmware.
You may already have an EFI System partition (ESP) - likely the first partition on the disk - check with Aomei partition Assistant. It will be FAT32.
[If you don't have an EFI System partition, create one. You can put it at the end of the drive, if necessary.]
1.Tick the box that says "tick for Uefi/bios"
2. In Active partition dropdown, you select the EFI System partition letter.
3. In the Windows partition dropdown, select your windows partition letter.