Restoring an MBR System image to UEFI/GPT (Macrium reflect):

Based on the information here but shortened for expert users: https://knowledgebase.macrium.com/pages/viewpage.action?pageId=23396929

• Boot into windows PE off the Macrium boot disk
• Open command prompt within Macrium
• Type:
  • diskpart
  • list disk
  • select disk 0 [or as appropriate]
  • clean
  • convert gpt
  • create partition efi size=200
  • format fs=fat32
  • create partition msr size=128
  • exit
• Refresh the disks in Macrium
• Restore the boot partition only into the new blank space of the target partition
• Run "fix windows boot problems" in Macrium
• Restart PC

See link above for full details and images.

How to restore an image:
https://digitalwelcomemat.com/index.php/how-to-guides/52-macrium-reflect-backup-image-restore-process