To fix this I've tried this but without any success, I still get the same error. When trying to start the setup.exe from the Installed Windows 7 it says that the Upgrade Path is not available. If booted a boot medium like a CD it says the upgrade must be started from the installed OS.
Using a Autounattend.xml file created with the Windows System Image Manager dosen't work at all. After the Upgrade all files should be where they were before and all other Settings should be like they were before. I want to be able to just start the setup for Windows 10 on an PC with Windows 7 installed so that after that initial interaction everything automatically works and upgrades the Windows 7 to Windows 10.
