Windows 10: Inaccessible boot device BSOD during Windows 11 22H2 upgrade

This has happened three times over the last month, I've done various things to uninstall programs, clean up files, etc., same thing.I have a Dell laptop running Windows 11 Pro 21H2. I'd like to upgrade to 22H2. The machine runs fine well, basically fine. When I do the upgrade, during one of the reboots I get the blue screen with "inaccessible boot device" message. The update then gets rolled back.I don't have a problem booting, it's just during the upgrade.I realize there are various drastic options, I don't want to go too far down that chain. I am OK "starting over" with Windows / apps

:)

 

Windows 11 BSOD Inaccessible boot device

Hi PG. I'm Greg, 10 years awarded Windows MVP, here to help you.

Here is how to fix Inaccessible Boot Device:

https://www.technewstoday.com/inaccessible-boot...

https://nerdschalk.com/stop-code-inaccessible-b...

https://www.technewstoday.com/inaccessible-boot...

https://thegeekpage.com/solved-inaccessible_boo...



https://helpdeskgeek.com/help-desk/how-to-fix-a...

https://www.tomshardware.com/how-to/fix-inacces...

Have you considered doing a Clean Install of Windows 11? This would give the opportunity to wipe the drive of all partitions to get it cleanest down to the boot level.

The best Clean Install is here:

https://www.windowscentral.com/how-do-clean-ins...

To create bootable Windows 11 installation media follow the steps under the section to Create Installation media in link Before you Start here: https://www.microsoft.com/en-in/software-downlo...

Power on the PC while pressing the BIOS Boot menu key given here:

https://www.sysnative.com/forums/hardware-tutor...

Make sure during the booted install to unplug all other drives, boot the media as a UEFI Device, choose Custom Install, delete all partitions down to Unallocated Space to get it cleanest, choose the Unallocated Space, click Next to auto-create and -format the needed partitions and begin install - this makes it foolproof.

After install expedite all Windows Updates including Optional until no more are offered. Then import any drivers from the PC maker's Support Downloads web page for your model that are newer, or branded instead of generic. The most basic thing we need to learn to maintain a PC is how to keep the latest manufacturer's drivers current. Windows drivers are rarely enough.

Make it a diagnostic install by monitoring for the issue after you reinstall each app, Update, settings or any modifications. Have System Restore points set so you can roll back before the change that causes this, if you isolate it.

If you want me to look over your disk configuration to see if I spot anything (about half the time in thousands that I've read) post a screenshot of Disk Management, which I read like a doctor reads X-rays. Follow the steps here so I can see everything needed to advise you: http://answers.microsoft.com/en-us/windows/foru...

Report back results for each step so I know what else to suggest.

Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

______________________________________________

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

 

Windows 11 BSOD Inaccessible boot device

Hello

This is the 2nd time I've tried updating to Windows 11. First time I've tried it (few months ago), I got BSOD when booting up with the issue "Inaccessible Boot Device". It got so bad to a point where it couldn't recover or rollback the issue and I ended up having to format my whole PC and reinstall Windows 10.

I tried it again for the 2nd time I got the same BSOD issue "Inaccessible Boot Device" but thankfully was able to rollback to previous state.

What is the matter and how do I fix it to successfully use Windows 11?

FYI, my computer is brand new, built this year running on X570 MOBO. BIOS has been updated to the latest version

 

inaccessible boot device

Ciao,

here is a list of commone causes (and resolutions) of this BSOD:

http://www.thewindowsclub.com/inaccessible-boot...

Please let me know if any of those worked for you.

Ciao

Ugo