I downloaded a file ( from a trusted supplier ) to upload files and now my computer appears to have been "taken over" by ADS - CONGRATULATIONS you have won etc .... I tried deleting Chrome and it's still here .... All thoughts and help greatly appreciated otherwise there will be a damaged macbook pro free to a good home!
Nope, no advice here, nothing can be done. I'll take it off your hands for you Seriously though, have you tried running anti-virus/malware software (you haven't mentioned it?)