Answer :
Run Dism with the /unmountwim and /discard options to undo the changes with the least amount of effort .
Do Windows 10 system images include a complete backup?
As it comprises a copy of everything on the computer, including the installation, settings, programs, and files, a system image is another term for a "full backup." A system image backup provides for the copying of the entire computer's disks and the operating system's state at a certain moment, allowing for the restoration of the computer to this condition.
This is how a system image backup operates: The drives that are chosen are copied by backup software. The command prompt application wbadmin.exe can be used to create a system image backup. An whole backup of everything on your computer's hard disk is known as a "system image."
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