-RIP- Luhgnut 10 Posted December 1, 2009 Getting "Arma2 not installed or corrupted?" There was a post from Placebo explaining to go into the registry and hunt down the registry key. This didn't work for me. The key wasn't even in the registry to alter. How to fix: Go into your \Program Files\Steam\Steamapps\common\arma2 delete (yes delete) your arma2.exe file. Launch steam. Go into MY GAMES tab. Right click Arma2. Go down to "Properties" and right click. Goto Local files tab. Click verify integrity of game cache. let that run. Then run the patch installer you downloaded. What it does, is checks to see if arma2.exe is installed, if not, it pulls it back down and puts the correct registry key in to allow the patch. Share this post Link to post Share on other sites