Do the same for the Steam/Arma Reforger executable if the trainer still isn't "finding" the game process. 4. White-list in Antivirus
If an update is available, install it and restart the trainer. 2. Verify Game File Integrity (Steam/Xbox App) Arma Reforger Trainer Fix
Set Steam to "Offline Mode" before launching the game. Do the same for the Steam/Arma Reforger executable
Right-click the trainer icon and select Run as administrator . Do the same for your game launcher if necessary. Arma Reforger Trainer Fix
The most common reason a trainer fails is a version mismatch. Arma Reforger receives frequent updates and hotfixes.