No internet

Hi,
can you help had a trojan on my pc managed to rid the bloody thing using rkill and your cleaning guide malwarebytes etc.

Everything was working ok my AV kept on saying some files had bad files and trojans ran malwarebytes, superanti spyware, ccleaner, hijack this. everything seemed to have gone.

Windows updated then no internet pc working fine in network adapters everthing had a yellow exclamation mark against it tried to update drivers wouldnt let me.

I installed another network card same thing yellow exclamation mark no internet.

Tried to system restore no restore points and firewall wont switch on

When i start pc, popup says tcp/ip problems.

Please Help

Thanks