Windows 10: Fix 0xc0000225, Boot selection failed because a required device is inaccessible

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This article provides solutions to fix the “0xc0000225, Boot selection failed because a required device is inaccessible” error. You may see this error in any of the following scenarios: While upgrading your Windows operating system. While performing a clean installation of Windows OS. While installing Windows Updates. While turning on an Azure VM. There could […]

This article Fix 0xc0000225, Boot selection failed because a required device is inaccessible first appeared on TheWindowsClub.com.

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Inaccessible boot device Windows 10

Hello,

Try the suggestions mentioned here and see if they helps you:

[FIX] Error "0xc000000f - The Boot Selection Failed Because A Required Device Is Inaccessible"

Hope this helps, Good luck

 

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.

 

Status 0xc000000f - The boot selection failed because a required device is inaccessible

There have been similar posts but this computer has no access to any disk device.

Have completed update on two old PC's - no real problem

Tried main computer with lots of software / development work

Upgrade seemed to be working till 44% / 32% (sub) then froze.

After checking advice (3 hours later) switched off, left for about 20 minutes and then switched on again.

System attempt recovery back to W7 but seems to have failed as the following now appears:

WINDOWS FAILED TO START. recent hardware ............ ........ .........

Status 0xc000000f - The boot selection failed because a required device is inaccessible

I took the recommended steps like trying to use recovery disks.

THE PROBLEM IS THAT NO DISK DEVICES are recognised by the system anymore and the dvd drive (or hard drives) cannot be read.

Setup still has all the devices and tried changing boot sequence but nothing!

One maybe unusual thing I did was have W10 downloaded on an SD card. Not sure if this has confused Windows in some way.

I'm fairly sure that there is a very simple solution and feel that all that is needed is to get W7 to recognise the drives.

Anyone who can help or experienced similar? TIA