Windows 10: How do I fix the INACCESSIBLE BOOT DEVICE windows 11.

I am experiencing an INACCESSIBLE BOOT DEVICE error after replacing my motherboard with an ASUS Prime B550-PLUS. I have been unable to boot into Windows since the hardware swap, and I would greatly appreciate your assistance. I have tried re-downloading windows with no USB my going into recovery mode but since then I haven't been able to access recovery mode.I dont know what to do.

:)

 

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.

 

Inaccessible boot device

This is a Microsoft link on inaccessible boot device:
https://docs.microsoft.com/en-us/win...le-boot-device

It is an intermediate level link.
There are more advanced steps that can be ran once the partition structure is known.
There are steps for repair of the boot sector, operating system, etc.
Sometimes this bugcheck can be caused by windows updates.

A reset save files equivalent may be able to be performed.
Alternatively a clean install can be performed once important files are backed up.

 

Update to 17063 fails - inaccessible boot device

1) Find a flash drive that you can format ( > or = 8 GB)
2) Create a bootable windows 10 iso:
Download Windows 10
4) Insert the flash drive into any USB port
5) Open the BIOS and temporarily change boot order so that you can boot using the flash drive.
6) When the iso loads choose language, time, currency, and keyboard, or click next
7) In the left lower corner click "repair your computer"
8) Click troubleshoot
9) Click command prompt
This should open: Administrator: X:\Windows\system32\cmd.exe > X:\Sources>

For all of the steps please use a camera or smart phone camera to take pictures and post images into the thread.

10) type: bcdedit | find "osdevice"
11) This may display osdevice partition=C:
12) type: diskpart
13) type: list disk
14) type: list volume
15) look under the column heading Fs for any volume that displayed RAW instead of NTFS
16) type: chkdsk /f /r G: (change G to the drive letter of the volume displaying RAW)
It may display "The first NTFS boot sector is unreadable or corrupt."
This may then convert the RAW volume to NTFS.
17) Type: exit
18) reboot to open the Windows advanced troubleshooting menu > command prompt > Administrator: X:\windows\system32\cmd.exe > X:\Sources>
19) type: bootrec /rebuildbcd
It may display:
Scanning all disks for Windows installations.
Please wait, since this may take a while...
Successfully scanned Windows installations.
Total identified Windows installations: 1
[1] D:\Windows
Add installation to boot list? Yes(Y)/No(N)/ALL(A):
20) Type: Y
The operation completed successfully.
X:\Windows>
21) Type: exit
22) reboot
See if the inaccessible boot device problem was fixed.

If the above did not fix the inaccessible boot device the next step is to remove the recent update:
23) Open command prompt > Administrator: X:\Windows\system32\cmd.exe > X:\Sources>
24) From the first command displaying the partition if the drive letter is different than C: please use the displayed drive letter for the next step
25) type: DISM /image:G:\ /cleanup-image /revertpendingactions (change G to the applicable drive letter)
26) This should remove the latest update and fix the inaccessible boot device.
27) If this does not fix the inaccessible boot device plan a registry repair.

Report into the thread your progress with images of the above steps.