thementalist

Hello, I have a Pc running Windows 8 64bit. Some weeks ago I had the ransomware polizia di stato on my pc. I was able to eliminate it with kaspersky rescue disk 10. After it I rebooted my PC and I found out that the connection to the internet isnt working anymore: I cannot set any wlan connection neither Ethernet connection is working. Additional it is not possible to activate the Microsoft Defender. Now I need your help pls. What should I do next?