Method 2. Right click the OBS Studio icon. Click the OBS Studio icon and hit 'Run as administrator'. How to run OBS as administrator to fix OBS capturing game with a black screen: It's easy to run OBS as an administrator. If OBS runs as administrator, the game capturing will be efficient. To fix the issue, you need access from the administrator. If there is a black screen during the OBS capture game, maybe the reason is that OBS is blocked. Later, you need to click the Transform button again and select 'Center to screen'. After that, right click from the Source dock and hit 'Transform' > 'Reset Transform'. The reason why to set it like this is that some game software won't show effectively in the full screen capturing mode. Also, you need to choose a specific window instead of a full screen for capturing. The first thing to avoid showing a black screen when capturing a game video is to use Game Capture mode in OBS other than window capture or something else. Best Game Recorders for Windows 7 PCs Fix: OBS Stuck on Stopping Recording Fix 1.