Game is not installed after locating it

I have just bought titanfall 2 -product code- and I copied game files instead of redownloading it, first time it verified game files then downloaded few MBs, then I got the option to install game, when I click it says downloading then finishes but I have install option only and I can't play it, now origin keeps verifying game files every time I open it, then the same thing keeps repeating.

when I try to launch it from desktop it says "The game Titanfall® 2 does not appear to be installed. Please install it or try relaunching the game."