How to Repair EFI/GPT Bootloader on Windows 10
on Windows 11
bootable media -> shift+F10 -> command prompt
diskpart
list disk
select disk 0
list volume
select volume 5
assign letter = K:
exit
dir c:\
Make sure that this drive contains windows, program files
Users and other directories.
Go to the bootloader directory on hidden volume:
cd /d K:\EFI\microsoft\boot\
If error displays "The system cannot find path specified)
cd /d K:\Boot\
or cd /d K:\ESP\windows\EFI\microsoft\boot\
You need to use BCDBoot.exe tool to restore bootloader
files and fix the boot records on EFI partition by copying
them from the system directory on the Windows partition.
The BCD bootloader configuration is recreated using the
%WINDIR%\system32\config\BCD-Template file.
Note:- system EFI on ESP/EFI system
partition (FAT32 100 MB size)
If windows 10/11 is installed UEFI
mode on GPT disk, then windows EFI
bootloader (Windows Boot Manager)
stores the boot manager and BCD
configuration on a separate hidden volume
(100 MB size with FAT32
file system). The bcdedit tool
doesn't see this EFI partition, and
cannot manage the bootloader configuration
on it.