[W10] bootrec /fixboot : Access is denied, even after formating UEFI partition and recreatinf boot files.

W

wund3rdelys

Hello,


When I try booting windows, I get this screen :

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So I tried to fix BCD booting on a install key > repair your PC > command prompt with these commands :

bootrec /rebuildbcd

Successfully scanned windows installations.

Total identified windows installations:
0

The operation completed successfully.

bootrec /fixmbr

The operation completed successfully.

bootrec /fixboot

Access is denied


So, following a lot of answers to this access is denied problem, I assigned a letter to the UEFI partition (V in my case) using diskpart.

Then I formated the partition with the format v: /FS:FAT32 command which seemed to work with the format complete output.

bcdboot c:\Windows /s v: /f UEFI then resulted in Boot files successfully created.

Finaly I moved to the partition with cd /d v:\EFI\Microsoft\boot and launched bootrec /fixboot with the same result : Access is denied.

I tried lots of variations of this solution during hours, always ending with Access is denied when i try bootrec /fixboot. My PC never booted either.

If someone could help me before I reinstall windows (or linux...) with complete despair, I would be gratefull.

For info, I use windows 10 on a Dell latitude Laptop


Thank you for your help.

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