Help! Bad Serial Key Given On Setup!

[olaiternatum 0]

I recently purchased both, Arma 2 and Arma 2:Operation Arrowhead on Steam. I ran both of them and BOTH crashed, for ARMA 2 it crashed on the little boxes with the ticks in. On Arma 2:OA it crashed on the loading screen, the "please wait" screen.

When ARMA 2 is launched it just displays a normal windows box saying "ARMA 2 has stopped working"

For ARMA 2:Operation Arrowhead a box comes up saying "Bad Serial key Given on Setup"

I'm confused because I don't know why this is happening and I hope one of you can help me :)?

[[email protected] 0]

Hello, and welcome to the forums. Since you've only got 1 post I'll assume you're not familiar with this forum. However, you may find more answers to your TECHNICAL support questions, posting in the troubleshooting support forum.

[lvg 1690]

Moved to trouble shooting.

[olaiternatum 0]

Moved to trouble shooting.

Ok, thank you? I just assumed because I would've thought that newcomers suited this a bit more but I didn't actually know so yeah... And do you have any ideas on how to fix it not how to move my post somewhere else -.-?

[Vengeance2449 0]

You have to run ARMA 2 and ARMA 2 OA both first as administrator before starting up DayZ. Hope it helps.