Trying to fix DISM "source" not found issue with Techbench ISO-how?

I started having the DISM online /cleanup-image errors when I used the command saying "source not found" I downloaded the Techbench ISO from a source and put the contents into a Folder called ISO in native directory on C drive. What command do I use now from the command line to fix this?

Right click at the ISO you downloaded from Tech Bench > click Mount> leave it there.

Go back to the elevated command prompt you were using, copy/past this command ............

Dism /Online /Cleanup-Image /RestoreHealth /wim:H:sourcesinstall.wim:1 /limitaccess

Note :H is the drive where the iso is mounted. Change it if your driver letter is different.

When it is completed, you should get the report that the operation is successful.
Now run the sfc /scannow again. It should be ok this time.

Right click at the ISO you downloaded from Tech Bench > click Mount> leave it there.

Go back to the elevated command prompt you were using, copy/past this command ............

Dism /Online /Cleanup-Image /RestoreHealth /wim:H:sourcesinstall.wim:1 /limitaccess

Note :H is the drive where the iso is mounted. Change it if your driver letter is different.

When it is completed, you should get the report that the operation is successful.
Now run the sfc /scannow again. It should be ok this time.

Thank you for the response. One question I have though is do I have to make an actual external ISO with a DVD or USB stick?
Reason I am asking is I just extracted the contents of the ISO image into a folder on my C drive. Can I "mount" a folder?

Thank you for the response. One question I have though is do I have to make an actual external ISO with a DVD or USB stick?
Reason I am asking is I just extracted the contents of the ISO image into a folder on my C drive. Can I "mount" a folder?

Open the folder, mount the iso. That's what I always do and I do not use any other way.

It is always wise to burn the iso to a DVD or USB for future reinstall in the event your computer breaks down.
But you don't need that in this operation.

Reason I am asking is I just extracted the contents of the ISO image into a folder on my C drive. Can I "mount" a folder?

If you've already extract the content of the ISO. Then use:
Dism /Online /Cleanup-Image /RestoreHealth /wim:C:PATHsourcesinstall.wim:1 /limitaccess
Where PATHis the folder under C:

For example, if you axtract the ISO to a folder called xxxunder C then the syntax would be:
Dism /Online /Cleanup-Image /RestoreHealth /wim:C:xxxsourcesinstall.wim:1 /limitaccess

No need to burn to DVD or mount.

Right click at the ISO you downloaded from Tech Bench > click Mount> leave it there.

Go back to the elevated command prompt you were using, copy/past this command ............

Dism /Online /Cleanup-Image /RestoreHealth /wim:H:sourcesinstall.wim:1 /limitaccess

Note :H is the drive where the iso is mounted. Change it if your driver letter is different.

When it is completed, you should get the report that the operation is successful.
Now run the sfc /scannow again. It should be ok this time.

How do I mount it? Just right click? I don't see an option to mount.

How do I mount it? Just right click? I don't see an option to mount.

I was asking you to use the ISO file. Not the bootable DVD or ISB you have burnt.

Go to the folder where the iso file is saved at > Right click at the iso file > do you see theMount option now ?