Solved How to do a Repair install with inaccessible boot device issue

chris1234 · Nov 1, 2025

Custom install sounds a lot like a clean install, but it keeps my files...
I am not concerned about keeping my files

I have plenty of backups of my files.
I have recently made numerous local restored copies from my backups.
Retaining files is not my priority
Installing a new clean windows11, I have done that too

I currently have at least 2 copies, the original one, that just does not work at all
And a restore from about a week ago that still fails to boot, but the commands offered are not failing and looks more promising to fix. So I'll be trying that at the moment

I would like to keep the setup, configuration, applications etc all installed and in place

glasskuter · Nov 1, 2025

Just a passing question. If you have so many backups of your FILES, have you not made any images of your SYSTEM. That be so, restore an image and keep on trucking. (as long as your drive is viable.)

chris1234 · Nov 1, 2025

Becuase I rarely shutdown the PC so it doesn't boot. It would seem the corruption is old and so the system backup images I have backuped are of the corrupted files.
Plus I recently changed from iDrive machine backup to iDrive mirror, so my system backup images are new and unfortunately corrupt.
Yes the restore technically does work, exactly as intended, it restored my unknowingly corrupted system.
Hardware is fine as Ive tested it and I've install a new windows install on it

chris1234 · Nov 1, 2025

I realised I can run dism on the other widows install from within the new windows install.
However "Check the internet connectivity" ehhhhhh, I'm definitely online and internet is working

PS C:\WINDOWS\system32> dism /image

:\ /cleanup-image /restorehealth /scratchdir

:\scratch

Deployment Image Servicing and Management tool
Version: 10.0.26100.5074

Image Version: 10.0.26100.6584

[==========================100.0%==========================]
Error: 0x800f0915

The repair content could not be found anywhere.
Check the internet connectivity or use the "Source" option to specify the location of the files that are required to restore the image. For more information on specifying a source location, see Configure a Windows Repair Source.

SIW2 · Nov 1, 2025

what is the build of the new windows install you are running the command from?

chris1234 · Nov 1, 2025

26200.6899
The title of this thread is wrong
This thread title is not solvable because to do a repair I need to boot into windows and I cant do that

SIW2 · Nov 1, 2025

to do a repair install you need to boot into windows.

to do a repair using restorehealth you do not need to boot into the sick windows. You need an appropriate repair source.

Deployment Image Servicing and Management tool
Version: 10.0.26100.5074

Image Version: 10.0.26100.6584

[==========================100.0%==========================]
Error: 0x800f0915

SIW2 · Nov 1, 2025

According to MS

When specifying a source:

Only use RTM media regardless of whether the source is a WIM or a mounted Windows image. Refresh media has older file versions excluded from the media and the target operating system may need these files.
Make sure the source is patched to the latest Cumulative Update. If the target OS is patched to a higher level than the source, adding features or repairing Operating Systems may fail because the target OS needs updated files that are not present in the source.

Clear as mud. Maybe that means the ideal source is the RTM ( which might mean the first release of 24h2 ) patched to 16584

You could try using 10.0.26100.6584
en-us_windows_11_consumer_editions_version_24h2_updated_sep_2025_x64_dvd_6d1ad20d.iso
and hope there arent any older file versions in the sick windows that need to be repaired

chris1234 · Nov 2, 2025

Thanks to all for trying I've giving and will re-install everything

zbook · Nov 2, 2025

For the clean install:

Code:

 It is recommended to temporarily disconnect or disable all non OS hard drives until Windows installation has finished for the following reasons:
To avoid you mistakenly deleting or formatting the wrong disk or drive.
To prevent Windows Setup from installing the boot configuration files (bootloader) to a different connected hard drive instead of on the disk Windows will be installed on.

Clean Install Windows 11

This tutorial will show you step by step on how to clean install Windows 11 at boot on your PC with or without an Internet connection and setup with a local account or Microsoft account. Windows 11 has all the power and security of Windows 10 with a redesigned and refreshed look. It also comes...

www.elevenforum.com

a) install drivers from the motherboard website
b) install applications in any order
c) Turn on Regback
d) Create a new restore point
e) Backup drivers as needed
f) Create new backup image

Backup and Restore Device Drivers in Windows 11

This tutorial will show you how to back up and restore all 3rd party device drivers on your Windows 10 and Windows 11 PC. If you clean install Windows, you will need to install drivers for each device in the system. Some of these device drivers may no longer be available from the manufacturer...

www.elevenforum.com

Enable Automatic Backup of System Registry when Restart in Windows 11

This tutorial will show you how to enable automatic backup of the system registry to the RegBack folder when the computer restarts in Windows 10 and Windows 11. Starting with Windows 10, version 1803, Windows no longer automatically backs up the system registry to the RegBack folder when the...

www.elevenforum.com

Create System Restore Point in Windows 11

This tutorial will show you how to manually create a restore point in Windows 11. Turning on system protection for a drive allows System Restore to include the drive when restore points are created so you can undo undesired system changes by reverting to a previous point in time. System...

www.elevenforum.com

zbook · Nov 2, 2025

Also after the clean install run Tuneup plus > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/360139d1645183596-batch-files-use-bsod-debugging-tuneup_plus_log.zip

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Turn off Windows fast startup if Windows was installed on a SSD:

Turn On or Off Fast Startup in Windows 11

This tutorial will show you how to turn on or off fast startup in Windows 11. There are three startup modes in Windows: Cold (traditional) Wake-from-hibernation Fast Starting with Windows 8.x, the default shutdown and restart scenario has been updated and named fast startup. Fast startup...

www.elevenforum.com

Other preferences:

Decide whether you want to:

a) turn on /off bitlocker

b) turn on / off secure boot

c) use a local or Microsoft account

Celery · Nov 2, 2025

I also have an AMD CPU, an ASRock motherboard, and an AMD graphics card.

After installing Windows, go to:

https://www.amd.com/en/support

Auto-Detect and Install Driver Updates for AMD Radeon™ Series Graphics and Ryzen™ Chipsets.

I haven’t installed any drivers from ASRock’s website.

Solved How to do a Repair install with inaccessible boot device issue

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