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Airin's Notes

Category: Windows 🠪 Startup
UEFI Boot failure: bootrec /fixboot: Access is denied
December 8, 2021

https://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-10-bootrec-fixboot-access-is-denied/747c4180-7ff3-4bc2-b6cc-81e572d546df?auth=1

Boot into Command Prompt from recovery media.
Diskpart
List disk
*** Make sure the disk has a * in the GPT column. If it doesn't, then this is not a UEFI drive, so you should follow the instruction for MBR instead.
Select Disk X
list vol
(Look for the 100-300MB partition with FAT32 filesystem, probably the last one)
sel vol X
assign letter=v:
exit

dir v:\ /a
: Verify this is the right disk, no important files are on it
format V: /FS:FAT32

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





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