The Unified Extensible Firmware Interface (UEFI) is an interface between a computer's firmware and operating system. It is designed as a replacement for Basic Input/Output System (BIOS). UEFI supports hard disks with either master boot record (MBR) or the newer GUID Partition Table (GPT) system. GPT is a newer standard that supports disks larger than 2TiB and allows for more than four primary partitions per disk.
As UEFI and GPT are increasingly widespread, older images of MBR disks often need restoring to replacement UEFI / GPT systems.
Caution: We assume there are no other hardware differences between the system being imaged and the system being restored to. For dissimilar hardware, use ReDeploy.
Boot into Windows PE.
Open a Windows command window. To open a command window click the iconon the taskbar.
Select the disk number that you want to restore to. For example:
Clean the selected disk:
By default, "clean" creates an empty MBR disk. Convert it to GPT:
Create the EFI partition:
Format the EFI partition:
Create the MSR partition:
- In Macrium Reflect, click Backup tab.
- Click Refresh to read the newly initialized disk.
- Click Restore tab.
- Select the image file, drag and drop the imaged partitions but DO NOT restore the MSR partition from the image file. In this example, only the C partition is restored to the target disk.
- Click 'Next' then 'Advanced Options' > 'Master Boot Record' and select the 'Do not replace' option for the master boot record.
When the restore is complete, configure the UEFI boot files in the EFI system partition.
Follow the steps in the section Fix Boot problems for GPT/UEFI Boot Systems in the following KB article:
Fixing Windows boot problemsYou may need to edit the UEFI configuration to tell it to boot into the new GPT hard disk.