My computer wont use the internet

I recently tried removing malware and a possible virus from my computer using c.c cleaner after doing so my computer will not connect to the internet, i have tried connecting it to different wifis and it says that it is connected but when you open the internet browser it says the page cannot be displayed. I have tried removing c.c cleaner from my computer and it still doesnt work, i have tried turning the firewall off and it didnt work. I really don't know what else i could do, as i dont know very much about computers. Someone please help me!
Some Information: I have a gateway laptop it uses windows 7, i'm not sure what other information to provide if you think you can help and need more info please ask!
I also cannot download the sysinfo as i have no internet to get to it,