Handle EFI partition from Windows - profzei/Matebook-X-Pro-2018 GitHub Wiki

How to access your EFI with Windows

1. Open PowerShell or Command prompt with admin rights (Win key + X and then A)
2. Then type the following in the Terminal shell:
   • diskpart
   • select disk 0 : you have only one disk
   • select part 1 : you are usually selecting a FAT32 partition with size in range 100 - 300 MB
   • assign letter=z : any non-reserved letter works
3. Now EFI partition is mounted in Windows and you can use Explorer++ to make your changes
   • Open Explorer++ with admin rights
   • Select EFI partition (Z) in the left pane and you can edit contents from the right pane
4. Now you can unmount EFI partition:
   • select volume Z
   • remove letter Z
5. To exit from diskpart tool run exit
6. To exit from PowerShell or the Command prompt run exit