Remove Linux GRUB from UEFI boot list and keep Windows BCD

UEFI: https://en.wikipedia.org/

ESP: https://en.wikipedia.org/

GRUB: https://www.gnu.org/software/grub/

BCD: https://en.wikipedia.org/

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1. Boot to Windows terminal mode, by typing this at command prompt
shutdown.exe /r /o
   other guide https://www.minitool.com/

2. Rebuild BCD (swapping GRUB to BCD)
   bootrec /rebuildbcd
bootsect /nt60 sys
bootrec /fixmbr
   if all of that command is not successful, jump to step 3, then back again here to rename old BCD, and retry.
   cd /d Z :/EFI/Microsoft/Boot
ren BCD BCD.old
   

   

   Windows 10 at terminal mode

3. Make​ ​ESP accessible
   diskpart
   type list disk if any other disk attached, else​ ​select disk 0
   
   type list volume to find ​ESP volume number
   
   select volume number (e.g 4 ) and assign a letter (e.g Z ) as ESP volume alias.
   select volume 4
assign letter= Z
exit
   

   

   Diskpart.exe

4. Remove Kali GRUB from ESP
cd /d **Z** :/efi
rmdir /r /s **kali**

5. Done

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Bonus

Merging unused (old linux system) to single (nearest) partition.

Highlight of unused partition

Extend partition volume with diskmgmt.exe

Result of merged partition