If you installed a new disk to your Windows computer and want to move the boot partition to this new one, you may want to stick with the following instructions.
- Start the command prompt cmd.exe as administrator
- Type and start
diskpart - Find the disk you want to use with
list disk - Select that disk with
select disk - List partitions with
list partition - Select that partition with
select partition - Shrink partition with (size in MB)
shrink desired=200 - Create new EFI partition with
create partition efi size=200 - Format partition as FAT32 with
format quick fs=fat32 - Assign letter to that new partition with
assign letter=x (Can be a free letter of your choice) exit
Now to install boot files one can use the following command :
bcdboot C:\Windows /s X:
Make sure to use the proper devices names for the previous command, C:\ must be your current Windows install and X: your new disk.
When you are done with the previous steps, please make sure to check the boot order in your BIOS/UEFI settings and select the new device first in the boot sequence.

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