Privitize VPN, How to Uninstall?

Hello i'am new here and i have a problem...i was looking for a free game-which i totally regret...so i downloaded something i should'nt have and at the end of it said "Thank you for downloading Privitize VPN" i wish i could have just went to sleep instead of being dumb and downloading something i regret...it gave me no indication it was a virus.please help!! yes ima newb