Windows 10: Use DISM to Repair Windows 10 Image - Fundamentals explanation Pls

Use DISM to Repair Windows 10 Image - Fundamentals explanation Pls

I have been reading the tutorial for hours and hours and need certain basic explanation in lay man terms. Did lot of google search but its always a bit more technical.

1. DISM command and SFC command
It seems that SFC repairs system files corruption by referring to some good image (i believe) of windows system somewhere already in my system which was created at time of windows installation.
Is the above a correct understanding?

2. What do you mean by servicing the image?

3. Is this image of windows in C somewhere is ISO of windows which we used for original installation?

4. Why the DISM command for restore health requires to sometimes mention source as ISO but now always?

5. Also it seems in cases where it requires iso then that ISO and installed windows must be on same build version edition etc? Is it correct understanding and if yes why so?

6. How to get iso image corresponding to my exact system build version edition as my system might not be always updated with windows updates and may be delayed? What happens if i want to use DISM command which would require ISO corresponding to my windows build? How to get one?

7. Given a choice of enterprise vs professional version of windows 10 it seems windows 10 professional makes more sense as it would be easy to obtain iso of my own online; as it seems should the DISM command require updated enterprise source iso one would not get it easily online.

Kindly clarify on above concepts. I did hours and hours of reading but conceptually need clarification for above. Sorry for long post. Hopefully some expert will be kind to explain.

Thansks in advance.

:)

 

scf can't repair corrupt files

At an elevated command prompt run:

dism /online /cleanup-image /restorehealth

How to use DISM command-line utility to repair a Windows 10 image

 

The DISM log file can be found

Hi,

These should help with the syntax.

How to Repair Windows 10 Image using DISM

Use DISM to Repair Windows 10 Image

How to use DISM command-line utility to repair a Windows 10 image

How to use DISM command-line utility to repair a Windows 10 image

Hope this helps.

--------------------------------------------------------------------------------------------

Rob Brown -
Microsoft MVP <- profile - Windows and Devices for IT : Bicycle - Mark Twain said it right.

 

1. Yes, these images are I believe called Hives. SFC checks the hashes of the files against the hashes of the Hive, if it doesn't match SFC tells you it found corrupted files. I have, however, seen a situation where a Hive's hash was bad resulting in a quite 'unrepairable' system as the file itself was not corrupted at all. This was due to a bug in an Avast driver, SFC actually was saying an Avast driver was corrupted. This was corrected by modifying the hash within the Hive with the assistance of an expert.

2. If translation is correct (english to dutch), basically maintaining the health of Windows.

3. No, DISM uses a local file, don't know which file though.
4. Sometimes the DISM image is also corrupted or somehow damaged that it cannot be used, then it needs to be refreshed with an ISO.

5. I believe so yes, because the files from different builds are different and as such different hashes. If you use an ISO from a different build it causes you trouble.

6. DISM doesn't work with exact versions.

 

This is not a direct answer but the clearest instructions for using SFC-DISM that I have found are in
SFC and DISM - ZigZag Forum article - this one seems to me to be the easiest one for the first time user
and in
DISM to Repair Windows 10 Image - TenForums - when you have used SFC-DISM a few times you might decide that this one is technically better

Denis

 

How to use DISM command-line utility to repair a Windows 10 image | Windows Central
helps a little.

Whereas SFC /Scannow only checks the integrity of your active Windows files against those in a backup copy held on C: (C:\Windows\WinSxS) and attempts to restore corrupted files from that copy, DISM can go a lot further, and download files or restore them from a specified source.

DISM offers another option of using a specified source of Windows OS files:

The article suggests ways of getting such a file.

DISM can, in certain cirumstances, access a file containing Windows OS files:

- but this is not always available.

DISM is a complicated command, as you know. You can also use DISM to modify files such as .wim, .vhd, or .vhdx files in various ways:
What is DISM?

Easier option:
Windows 10 Recovery Tools - Bootable Rescue Disk - Windows 10 Forums
See #2 here for Kyhi's tool that makes the basic repair steps easier.