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Windows 10 bootrec /fixboot access is denied

Posted: Tue Apr 13, 2021 3:49 pm
by RescuePC
Windows 10 bootrec /fixboot access is denied

Windows 10 Installation Media:

Insert the Media (DVD/USB) in your PC and restart.
Boot from the media.
Select Repair Your Computer.
Select Troubleshoot.
Choose Command Prompt from the menu

Diskpart
List disk (Note which disk is your Boot drive number mine is 0)
Sel disk 0
List vol (Note which volume is the EFI partition mine is 4)
Sel vol 4
assign letter=V:
Exit
V:

possible format V: /FS:FAT32

bcdboot C:\windows /s V: /f UEFI
or
bcdboot C:\windows /s V: /f ALL

other commands
bootrec /fixboot
bootrec /scanos
bootrec /rebuildbcd - this tends to fail so have tol do the above