BCDBoot

https://www.digitalcitizen.life/command-prompt-fix-issues-your-boot-records
https://www.tenforums.com/tutorials/148748-how-delete-boot-loader-entry-boot-menu-startup-windows.html

BCD Boot Fix

diskpart

list disks
select disk 0

list volume
select volume 1
assign letter=Z:

exit

cd /d Z:\EFI\Microsoft\Boot\
bcdboot C:\Windows /s Z: /f UEFI

bootrec /fixmbr
bootrec /rebuildbcd