Rainbow Six Siege - How To Fix Black Screen
Follow the instructions below
Open up your File Explorer. Navigate to: Documents, My Games, Rainbow Six Siege, and here open up the folder to access your game settings file. Open up the file with a text editor like notepad, and here, make sure to set the Window Mode value to 2. This will make sure that the game will start in windowed mode, which will bypass crashes caused by an abnormal native resolution. Don’t forget to save the changes to this file.
When this is done, navigate to the drive on which you saved the game on, Program Files, Steam, steamapps, common, Rainbow Six Siege, and here scroll down to find the RainbowSix.exe application. Right-click the application and select Properties. In the Compatibility tab, select to run the program in compatibility mode for Windows 7, run the program as an administrator and disable fullscreen optimizations. Don’t forget to apply your changes.
Verify Game Files
In case the issue persists, then your game files might be corrupted. Open up your uPlay, Epic Games or Steam launcher. In the game library, right-click Rainbow Six Siege and select Properties. In the Local File tab, select Verify integrity of game files, which will take a minute to redownload and replace any missing or corrupted game files.
Make sure that your graphics driver is up to date. I suggest using the GeForce Experience application if you’re using an NVIDIA GPU, but you can also use the AMD driver suite. Depending on how frequently you are updating your GPU, this tweak can make the biggest difference. In the Drivers tab, simply click on Download and the application will automatically download and install the latest driver
Search for Update to open up your Check for updates system settings window. Click on Check for updates, and after downloading the latest OS update, make sure to restart your PC.
In case you still experience startup or black screen issues, then you most likely have software running on your system which is hindering you from playing the game. To fix this, I first of all suggest uninstalling recently installed programs which can change your files, or use up your available resources, such as OBS, Shadowplay, CCleaner or Adobe application to troubleshoot which program is causing the black screen.
In some cases, even your firewall or antivirus application can negatively impact the game’s performance. Open up your Task Manager by right-clicking your taskbar and selecting it. In the Processes tab, make sure to end programs from running which you don’t need while playing the game, and which could trigger startup problems.