6 Ways to Fix Regular In-Game Rainbow Six Siege Crashing on a Windows PC

Rainbow Six Siege crashing issues are frequently reported by players on Reddit and elsewhere. One RSS player said this, “I’m not exactly sure if this is a software or hardware issue, but my Rainbow Six Siege has been repeatedly crashing for a while now, usually after about 1 round or 3-4 minutes of playing.” Regular in-game crashing like that can make Rainbow Six Siege quite unplayable even when the game still starts. This is how you can fix recurring Rainbow Six Siege crashing on Windows PCs.

Verify the RSS Game Files

Verifying (repairing) game files is always a recommended troubleshooting method for fixing crashing issues. This may not always work, but you can’t rule out the possibility of corrupted game files causing crashing. So, try verifying Rainbow Six Siege with the Steam or Ubisoft Connect software with which you installed the game. These Ubisoft Connect and Steam pages tell you how players can verify a game’s files.

The Verify integrity of game files option

Reduce Rainbow Six’s Graphical Settings

Some players say lowering in-game graphical settings has remedied Rainbow Six Siege crashing on their PCs. This will most likely be effective if you’ve configured high graphical settings for the game, particularly on more limited, older PCs. Start Rainbow Six Siege and click its cog settings button > Options > Graphics. Then try reducing Rainbow Six Siege’s graphical configuration as follows.

• NVIDIA Reflex Low Latency: Off
• Latency Flash Indicator: Off
• Overall Quality: Custom
• Texture Quality: Low
• Texture Filtering: Linear
• Shading Quality: Low
• Reflection Quality: Low
• VFX Quality: Low
• Ambient Occlusion: Off
• Lens Effects: Off
• Zoom In-Depth: Off
• AMD FidelityFX Super Resolution 1.0 and 2.0: Off
• Anti-Aliasing: T-AA
• Adaptive Render Scaling: 0
• Render Scaling: 50
• T-AA Sharpness: 50

The Graphics tab

Set a Max FPS Limit for Rainbow Six

Many players have fixed Rainbow Six Siege crashing by setting a max FPS limit for the game. An overlay high frame rate can crash the game. This is how you can set a max FPS limit for Rainbow Six Siege.

1. Click the pinned folder library taskbar shortcut to access File Explorer.
2. Go to the This PC > Documents > MyGames > Rainbow Six Siege folder location.
3. Next, open the memory location folder with random characters that will look something like cf5ac81a-c8c1-4e5e-bec9-7ac25b981924.
4. Right-click the GameSettings.ini file for Rainbow Six to select Open with and Notepad context menu options.
5. Scroll to the FPSLimit setting in Notepad.
6. Change the FPS option to FPSLimit=60. However, you can try setting that slightly below or above but don’t set it any higher than 80.
   
   

   The FPS setting

7. Click File to select the Save option in Notepad.

Select New Compatibility Options for Rainbow Six

Setting new compatibility startup settings for Rainbow Six Siege can potentially resolve various crashing issues. This involves selecting to run the game in compatibility mode, as an administrator, with fullscreen optimization disabled. Set the compatibility options for Rainbow Six Siege as follows.

1. Open the RSS game folder at the SteamLibrary > steamapps > common > TomClancy’s Rainbow Six Siege directory path.
2. Right-click the RainbowSix.exe file and select Properties on the menu.
3. Click Compatibility on the tab bar of the properties window.
4. Select Run this program in compatibility mode and Windows Vista (Service Pack 2).
5. Click Disable fullscreen options to enable that setting.
   
   

   The Compatibility tab

6. Set the Rainbow Six Siege to run with elevated privileges by selecting Run this program as an administrator.
7. Press the Apply and OK buttons to set all selected compatibility options.

Disable Steam Overlay and Cloud Sync Settings

Players have said they’ve discovered enabling cloud syncing can cause Rainbow Six Siege to crash. The Steam overlay is also a feature known to cause gaming issues. So, try disabling the Steam overlay and cloud sync settings.

1. Open your Steam software.
2. Click Steam > Settings.
3. Next, turn off the Enable Steam Cloud option.
   
   

   The Cloud tab

4. Turn off the Enable Steam Overlay while in-game setting on the In-Game tab.
   
   

   The In Game tab

If you’ve installed Rainbow Six Siege with Ubisoft Connect, try disabling the same options for that software. You can disable the cloud syncing for that software as instructed on this Ubisoft help page. Deselect the Enable in-game overlay option for supported games setting on the same tab as the Ubisoft could syncing option. 

Apply a Clean Boot

To ensure problematic background apps aren’t causing Rainbow Six Siege to crash, try applying a clean boot. Clean booting your PC will disable all third-party background apps and services that start with Windows. Furthermore, this potential solution will free up more system resources for the game. This Microsoft page tells you how users can configure a clean boot with the Windows system tools.

The Services tab in MSConfig

Other Possible Ways to Fix Regular Rainbow Six Siege Crashing on a Windows PC

There are many possible causes for Rainbow Six Siege crashing, some of which the potential resolutions above may not address. These are some additional troubleshooting suggestions that could also fix crashing issues for that game:

• Update graphical drivers for the video card on your PC.
• Reinstall the Rainbow Six Siege game.
• Set a High Performance graphics setting for Rainbow Six Siege.
• Delete the PC sound data folder at this Steam path: Steam\steamapps\common\Tom Clancy’s Rainbow Six Siege\sounddata\pc. Try verifying Rainbow Six Siege after erasing the sound data.

The above resolutions can resolve variable in-game Rainbow Six Siege crashing issues that occur regularly. Applying the possible fixes will likely at least reduce crashing regularity. You can contact the RSS help service for further potential fixes by clicking Contact Us on this Ubisoft page.