When you run DISM tool, Windows creates its log and saves it on your disk. This article shows how to view DISM log files on Windows 11/10.

CBS or Component-Based Servicing log file logs Windows Update & SFC scans & corrupt file errors found. Can you delete it? Full details here.

I have been trying to successfully image Windows 7 boxes using WinPE (4 or 5) and either DISM, ImageX, or GimageX? I have built Brian Jackson's WinPE4 and utils that incorporates GimageX.