I downloaded Win7 w/SP1 x64 german ISO directly from Microsoft and used WinToolkit 1.7x to integrate all the updates, .net-Runtimes etc.
Most of the updates I downloaded using whdownloader, but the missing ones I added by downloading them from ms update catalog (.net and c runtimes as Addon from this site).
After installation Windows Updates tells me it needs to install SP1 with about 9MB of size?!?
2019-10 cumulative update KB4524752 and security update KB3046269 are missing too, but I added them to the update-list.
Any idea on how to fix this issue?