OK Guys, I tried and I failed. The beta version also crashed my system! Now I uninstalled my Realtek-Teaming, but now seems the Realtekdriver itsself be the guilty. With the beta I have no more bluescreen but also no more internet connection. The Internet Security is blocking all my NICs.
Thats it, please tell me to downgrade on the normal Avast Pro version. I tried to install that, but after giving my license key, the programm automaticly updated to the Internet Security version!
Cheers, Thomas