Bad Serial Number Given On Setup

[Da Bomb]

I have the problem where it says bad serial number given on setup for ArmA2. I've tried all the solutions listed here:

https://support.steampowered.com/kb_...4950-EKAM-2644

to no avail. The problem could be that I have the game installed on annother computer.

[Aeneas2020]

Are you trying to run the game on both machines at the same time?

[Da Bomb]

No, thats impossible as I am using Steam.

[Jelliz]

the link you've provided is not working, so ill have to try to give you a solution blind.

If you are updating to 1.05 and are given this error message, try to run the game first, and then update.

[Da Bomb]

Fixed link:

https://support.steampowered.com/kb_...4950-EKAM-2644

[Da Bomb]

Fresh install did not help.

[Royal-Killer]

If you purchased the game on steam and still get that error you should try re-download the game by deleting local content or contact support.

[Da Bomb]

If you purchased the game on steam and still get that error you should try re-download the game by deleting local content or contact support.

I just did that. Thats what I meant by re-install.

[CannonousCrash]

Perhaps the problem is Steam. You said its installed on another pc, Perhaps Steam wont allow you to install it on another machine?

[Da Bomb]

I have done this with other games though. Maybe ArmA2 only lets one cdkey per comp.