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Error code 480 seems to be "Unable to uninstall legacy Ivanti Antivirus"
Do you have Ivanti AV installed ? If yes, try removing it running "vulscan.exe /removeav /ShowUI"
Thank you amagi,
but the solution was another one, Ivanti AV is not installed, we`re using another solution for that. The problem was the Win10 Source, I used the ISO File created with media creation tool and this works fine for several Installations.
The Client is a HP Business-device, with a HP Win 10 Install Source it works fine. Also I tested Win 10 CD with key, even works fine, so it`s solved for me.