I've watched several youtube "windows 10 install" videos and in them I see the same behavior I experience. Either there are a lot of malware infected source installation iso's or this is now completely normal.
Hi all. I'm new to the forum. I've been installing Windows for many years and I've seen this issue before with malware infected Windows installation files on Windows 7. If the installation is tainted, a cmd window will flash briefly before the install launch page. I have the same issue...