How to fix DISM error 0x800F081F

Hi
Getting DISM error 0x800F081F in below setup.

Setup:
1. Customer’s windows 8.1 all in one PC boots OK, but when logging in you never see any desk screen.
2. Mouse, keyboard and alt ctrl del working fine – task manager works fine and shows 99% idle. No lan connection
3. Booting in safe mode with cmd.
4. Entering “Dism /Online /Cleanup-Image /RestoreHealth /Source:g:\windows /limitaccess”, where G is a mounted USB drev with latest backup.
5. Here I am getting DISM error 0x800F081F.

Pls. suggest

Yes, correct.
Issue raised here because it is generic and probably same in win10

Your source cannot be a backup of Windows.

As an alternative to using Windows Update, you can use the following as a source:

Mounted image:
You can use a mounted Windows image from a WIM file as a source to restore optional features and repair a corrupted operating system. For example, c:\mount\Windows. For more information about capturing a Windows image as a WIM file, see Capture Images of Hard Disk Partitions Using DISM.

Running Windows installation:
You can use a running Windows installation as a source to restore optional features by sharing the c:\Windows folder on your network.

Side by side (SxS) folder:
You can use a Windows side-by-side folder from a network share or from a removable media, such as Windows installation media, as the source of the files. For example, z:\sources\SxS.

WIM file:
You can use a Windows image (.wim) file on a network share as a source to restore optional features. You must specify the index of the Windows image in the .wim file that you want to use and you must use a Wim: prefix in the path to identify this file format. For example, to specify index 3 in a file named contoso.wim, type: Wim:\\network\images\contoso.wim:3.

It would be better to boot from the installation disk to perform this reparation.

If you have a wim file:

Code:

DISM /Image:c:\ /Cleanup-Image /Restorehealth /scratchdir:c:\windows\temp /source:wim:E:\sources\install.wim:2 /limitaccess

With esd file:

Code:

DISM /Image:c:\ /Cleanup-Image /Restorehealth /scratchdir:c:\windows\temp /source:esd:E:\sources\install.esd:2 /limitaccess

Where C:\ is the offline system and E:\ is the installation media. Depends on your source.

I'm not sure how you proceed ?

While booted in Windows installation.

The commands should be launched from X:\Windows\System32, at the moment you are using the DISM of your offline Windows, instead of the one on installation disk.

And finally your source is not correctly qualified:

Code:

/source:wim:E:\sources\install.wim:2

Mention Wim and index at the end