Windows Settings aren't working

Hi there everyone,
I installed Windows 10 / 1803 using a WDS Server Image. The Image was customized using a tutorial on TenForums. Also an answer file was used thanks to a Tutorial from TenForums. So far so Good installation ran smoothly. No to my problem: I created 2 admin accounts call the user1 & user2 and activated the built-in-Administrator account in the answer file. I logged in to the first account, checked for settings an adapted a few windows settings (Startmenü, Language settings etc. using Powershell-Script) and logged in to the second account and did the same. In the mean time updates were installed, HP Softpaq Manager was running.
Now when I logged in to the 3 account the Windows Settings didn't open properly and the Browser didn't open either.
I searched for hours an none of the solutions worked so far. I can open control panel, registry, explorer but not the settings and the browsers.
When I log in to one of the other accounts they work perfectly..... .
The order I logged in: 1. user1, Administrator, user2. Has anyone an idea??? Thank you very much