[Answered] "Bad serial number given in setup" NOT STEAM VERSION

[[Answered] "Bad serial number given in setup" NOT STEAM VERSION]

Ok i will check it out thank you.

[[Answered] "Bad serial number given in setup" NOT STEAM VERSION]

I got Arma II and Arma II OA today, i downloaded it normally but then i went to play OA it said Bad Serial Number Given in Setup. So then i tried Arma II and it did the same thing. Then I tried verifing integrety of cache and that didnt work. So right now im not sure wat to do to fix it can someone please help?