Fixing UEFI after changing from MBR to GPT

[AssemblerX86]

Hi,

I couldn't find a working guide on how to fix Windows UEFI boot after changing the partition table layout from MBR to GPT.

I have changed the partition table layout, and the Microsoft Reserved partition got also deleted, so I recreated one with 128MB size, NTFS, and msr flag set on that partition.

I already have an EFI partition and it is working (Linux boots from it), but how do I add Windows EFI image to it?

I have Windows 8.1 x64 Pro.

Thanks in advance!

 

[SkyNetRising]

how do I add Windows EFI image to it?

Boot from windows 8.1 installation media and use bcdboot command:

• bcdboot x:\windows /s y:

x: - windows partition
y: - bootloader partition (EFI system partition)
(it's possible - bootloader partition may not have letter assigned when booting from windows installation media, then use diskpart command to assign drive letter)

• diskpart
  list disk
  select disk a
  list partition
  select partition b
  assign letter=y