DISM for a dummy- what’s it for?

  john bunyan 16:47 10 Apr 2019

I have occasionally run sfc /scannow for checking and correcting errors in SFC, and also used chkdsk. On a recent thread link the use of DISM was advocated. Could someone explain under what circumstances a home end- user would need this and what does it actually do? I found Google a bit too technical.

  Fruit Bat /\0/\ 16:56 10 Apr 2019

Used as a command line to mount and view windows images (just as you can use macrium to view and extract files from macrium images).

You can also use it on a running system to get rid on corrupt windows files such as bad downloads that cause problem locking up windows updates.

  john bunyan 17:57 10 Apr 2019


Thanks. Windows images? Where are they? As an example I suspect a Devolo Cockpit app somehow had a suspect driver or file. Uninstalled it ok but could I have used DISM? Sorry to be a bit slow! Is it for people who use Windows back up to make images? I, and others , as you know use Macrium, so would I ever need DISM?

  Fruit Bat /\0/\ 19:51 10 Apr 2019

Is it for people who use Windows back up to make images?

Yes but more for developers.

Only reason you might use it as a tool to repair corrupt updates click here

  john bunyan 20:51 10 Apr 2019


Cheers. Will note link for future reference.

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