Hello,
and thanks so much for all of you trying to help me and giving advice what could work getting my system working again. I had lot to do at office the last few days, so I wasn't able to post here.
Please sorry for that!
I tried all adviced measurements, but unfortunatly they didn't work.
I tried system restore, I had several restore points, but the restores didn' t work, too. Doing some googling I learned there's a bug in win10 preventing a system restore. I found some advice to deal with this, but also this didn't work.
So finally, I now did reinstall of windows10. I have now a working windows again and downloading the latest updates while writing this.
I will now install all my drivers, software and devices.
This is also the tome for me, I will change from P3dv3 to P3dv4. I think it doesn't make no sense installing v3 again. So, I'll try to get something positive from this situation.....and buildup a new simsystem. So, there's much to do the following days.
Thanks again for your helping me....