I joined RC2 server and 5 seconds later I was kicked by Punkbuster. I have tried everything I could find on google but didn't work. I used my friend's account to joined and played without any problem. Battlelog said prior kick/ban, my ID is Thanos_Conqueror. Thank you very much.
Unfortunately a PB ban it's not reversible, you will need to buy another game key, and maybe let you play again, but either way you need to reinstall windows to delete all infection