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Been trying to upgrade my laptop to Windows 11 for the past few days now with very little success. Whether I use the install assistant or a USB formatted by the Media Creation Tool, the installation process keeps throwing up the INACCESSIBLE_BOOT_DEVICE error and reverting back again. I've tried various solutions to fix this problem, from updating or installing whatever programs I felt might impact the installation to resetting the settings on my BIOS. I want to avoid having to do a clean install and wiping my laptop if possible.
I've also been running SetupDiag and seeing if I can make sense of the logs, but I'm unfortunately not at all knowledgeable in this field. I'll put a link to the log.zip file from my latest install attempt here:
https://1drv.ms/u/s!AjBTgjb2fAligsFHjywzNkjLYbALWg?e=Djyxoc
If there is any more information you need, please let me know.https://1drv.ms/u/s!AjBTgjb2fAligsFHjywzNkjLYbALWg?e=DjyxocIf
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
The computer should boot to the desktop when performing an in place upgrade repair.
There is no boot to a flash drive for an in place upgrade repair.
Please see the tutorial links for mounting the iso.
See if there is something useful in this Asus video on IRST and VMD:
I have some great news; after some searching, I found out how to disable VMD on my computer and switch it from RAID to AHCI. I had to set the computer to Safe Boot before going into the BIOS to disable the VMD controller mode. When it booted up, it automatically installed a AHCI driver in place of the VMD-based driver that was controlling the storage drive, after which I disabled safe boot and it booted up normally. This was the guide I ended up following: https://superuser.com/a/1359471
The Windows 10 in-place upgrade went without a hitch, and so did the Windows 11 upgrade! The VMD controller turned out to be the culprit behind the boot drive not being detected during installation. Thanks so much for helping me out!
Please boot to the Windows 10 MCT (iso) > Windows RE > command prompt > type:
notepad
bcdedit | find "osdevice"
diskpart
sel dis 0
lis vol
lis par
sel par 1
assign letter=W:
lis vol
exit
format W: /fs:fat32 /q
bcdboot P:\Windows /s W: /f UEFI
(change the drive letter P: to the drive letter seen in the bcdedit command result)
Save to notepad as needed.
Save to a flash drive as needed.
Post images or share links
Reboot
Upgrade from 10 > 11 while in clean boot
Following your instructions prior to installing Windows 10 (got ahead of myself and tried to reinstall Win 10 off the bat, but while it didn't crash, it did freeze), and I got as far as formatting the W Drive (which I assume is formatting the system partition) and it threw up this error:
C:\windows\system32>format W: /fs:fat32 /q
The type of the file system is FAT32.
Enter current volume label for drive W: SYSTEM
WARNING, ALL DATA ON NON-REMOVABLE DISK
DRIVE W: WILL BE LOST!
Proceed with Format (Y/N)? y
QuickFormatting 260.0 MB
System Partition is not allowed to be formatted.
Format failed.
This is after setting my boot to normal, as you said, and running admin command prompt.
0xC1900101, 0x30017
Bugcheck 7B
INACCESSIBLE_BOOT_DEVICE
Find a flash drive that you can format (> or = 8 GB).
Create a bootable Windows 10 Media Creation Tool (MCT) (Windows 10 iso)
Download Windows 10 ISO File | Tutorials
Boot normally > open administrative command prompt > type:
diskpart
sel dis 0
sel par 1
assign letter=W:
lis vol
exit
format W: /fs:fat32 /q
bcdboot C:\Windows /s W: /f UEFI
Reboot
Upgrade from 10 > 11 while in clean boot
