Can't connect to Arma

[ipwnedutwice 0]

I am using the SIX Server launcher for DayZ and every time i try to join a server it says

It appears your ARMA2 Operation Arrowhead Key is not entered into the registry.

In case of a steam game, please run each ARMA game through the Steam Launcher

at least once, while the steam launcher is started as administrator

In other cases, try reinstalling the game or try the bi forums for support.

I have already ran arma 2 and arma 2: oa and it still hasn't worked, and I really dont want to re-install it

Is there anything else i can do?

P.S i have already tried DayZ Commander

[Skat3rat 1633]

Try running the games on the admin account and not just running them as administrator. That's what I had to do.

[blunt_zephyr 51]

Easiest way to fix it. Delete the OA Beta from Steam (local content). Turn off the force-beta from within Pay withSix and, for me, it works without error.