@Bernstroemea
Sorry, but on the English part of the forum we need to write in English. I will tag @EA_David and @EA_Nils and ask them if they can move the thread to this section of the German forum, but in the meantime it has to be English.
What's about the sound card driver? Is there a newer one?
Do you play other games in the moment?
There is a even newer geforce driver out, you can download it here. Test this driver, but if it doesn't work roll back to 359.06. You can find 359.06 here.
Install the graphic driver this way:
• shut down any not necessary programs in the background.
• shout down any and all system monitoring programs and any overlooking tools you might have.
• Download DDU:
• Install (if you have profiles for games, back them up using "NVIDIA inspector")
• run DDU > save mode > NVIDIA Software and Drivers > Clean and Restart
• Press the WIndows Key and X > Task Manager > Startup > Disable the NVBackEnd.
• shut down your virus scanner.
• Run the installation EXE > CUSTOM mode > preform a clean installation > install only the GPU Driver and the PHYSX software.
(don't deselect components you need even if the have the same version number, the installation program will deinstall them if you do)
• Reboot
Edit: @The missing Mini Dump
If I understand you correctly, you don't get a blue screen when the Machine crashes?
There are several reasons why Windows can't produce a Mini Dump, and none are good.
What kind of PSU do you use?