My game was working perfectly fine, and then I was having FPS issues while playing a DayZ Origins server... I decided to let my computer cool off, and restarted... Relaunched the game in less than twenty minutes and the error saying that my Bad Serial Number Given in Setup was given and so far solutions I have tried...
1. I have tried the main solution with Regedit and permissions changes. This had a little issue due to it not being under the Wow6432Node... It was only under Software, so I tried the permissions on that, and attempted to relaunch and had the same error.
2. So, instead I decided to use the Steam "Delete Local Content" on Arma II Operation Arrowhead, and reinstall... Same issue after reinstall...
3. After that, I tried the permissions again, and still the same issue.
4. I decided to go though, and make sure it was a full uninstall. I deleted local content with Steam, went into the Steam folder manually, and deleted both Arma II and Operation Arrowhead. I also went and deleted my profile from My Documents, and I also deleted the registry files with Regedit. The issue still remains the same... Both Arma II and Operation Arrowhead have the Bad Serial Number Given in Setup...
I looked at some of the post threads, and almost all of them were just threads referring to this one...
So... If you have any ideas on what I should do... It would be appreciated....