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Why Does My Siege Keep Crashing

If you’ve encountered persistent frustration with Rainbow Six Siege crashing on your PC, whether during startup or gameplay, you’re not alone. The game’s reputation often interferes with persistent challenges involving game-breaking bugs, errors, and glitches.

These crashes can be attributed to various factors, including missing or corrupted game files, outdated device drivers, interference from in-game overlays, or restrictions imposed by your Windows firewall settings. Such issues can disrupt the game’s stability and cause crashes, leading to player discontent and a less-than-optimal gaming experience.

Verify the integrity of game files

Rainbow Six Siege Keeps Crashing on Startup PC
Verify the integrity of game files (Image by eXputer)

Corrupted game files can be the most likely culprit of regular crashes in Rainbow Six Siege on PC. Thankfully, these files can easily be repaired using built-in tools for both Steam and Ubisoft Connect versions of the game.

Now the Steam/Ubisoft Connect client will run a check of your game files, and any files found to be corrupted or missing will be re-downloaded. The check may take a while owing to the large size of Rainbow Six Siege’s game files, but once it is completed, you should no longer experience the game crashing on your PC.

Update device drivers

Rainbow Six Siege Keeps Crashing on Startup PC
Update drivers (Image by eXputer)

Another reason behind the frequent crashing of your copy of Rainbow Six Siege on PC can be outdated or incorrect device drivers, especially for your graphics card.

Additionally, you can also perform this driver update through programs like NVIDIA GeForce Experience and AMD Radeon Software, depending on which graphics card you have. Moreover, you can use third-party software such as Driver Easy Free to easily check and update all of your PC’s drivers.

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Once your device drivers are updated and ready to go, restart your PC. This should fix any crashing issues you were having with Rainbow Six Siege on PC, whether on startup or in-game.

Add an exception in Windows Firewall

Adding an exception in Windows Firewall for Rainbow Six Siege involves configuring your firewall settings to allow the game to establish connections without any hindrance. Sometimes, the firewall may mistakenly block the game’s access to the internet or disrupt its communication, leading to frequent crashes.

By creating an exception, you’re essentially telling the firewall to permit Rainbow Six Siege to freely interact with the internet, reducing the chances of crashes caused by connection interruptions or blocked access.

Limit startup and background applications

This worked for my Rainbow Six Siege crashing – It is also possible that certain applications are running on your PC in the background which hinder the working of Rainbow Six Siege, causing it to crash, even on startup. Some of these applications start up whenever you boot up Windows. To disable them, go through the following steps.

  1. Open the Windows Start Menu, and search for System Configuration.
  2. Click on the first option.
Rainbow Six Siege Keeps Crashing on Startup PC
Open System Configuration (Image by eXputer)
  1. In the General tab, select Selective startup and uncheck Load startup items. This prevents unnecessary third-party programs from launching when Windows starts.
Uncheck ‘Load startup items’ (Image by eXputer)
  1. Afterward, go to the Services tab, and check the Hide all Microsoft services This will leave only third-party services.
  2. Click on Disable All.
‘Hide all Microsoft services’ and then ‘Disable all’ (Image by eXputer)
  1. Click on Apply and then on OK.
  2. Lastly, go to the Startup tab and click on Open Task Manager.
  3. Here you will see a list of applications that start whenever your PC loads up. For each application, right-click on it and select Disable.
Disable startup programs (Image by eXputer)

You have now successfully disabled all third-party startup programs and services. Restart your PC and launch Rainbow Six Siege again to see if the crashing issue has been resolved.

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Additionally, you can also open the Task Manager to see if any third-party background processes are using up too many resources such as CPU, GPU, and RAM. If so, try ending the process (right-click on the process and select End task), or uninstalling the program completely. Once completed, run the game and see if the issue persists.

Run in Compatibility Mode

Another verified fix is to run the game in Compatibility Mode. This fix is only applicable if you are running the game on Windows 10, though.

  1. Find the game launcher .exe file or a shortcut file.
  2. Right-click on the file and select Properties.
  3. Once here, go to the Compatibility tab and check the option Run this program in compatibility mode for.
  4. From the drop-down menu below, select Windows 7.
Select Compatibility Mode for Windows 7 (Image by eXputer)
  1. Click on Apply, and then on OK.

Try launching the game again, and see if the issue persists.

Disable fullscreen optimizations

Disabling fullscreen optimizations is a troubleshooting step to address Rainbow Six Siege crashes. Fullscreen optimizations, a feature in Windows, aim to enhance gaming performance, but sometimes, they can cause conflicts with certain games like Siege.

By turning off fullscreen optimizations for Rainbow Six Siege, you’re essentially preventing potential conflicts that might be causing the game to crash during gameplay. This tweak aims to ensure smoother performance by allowing the game to manage its display settings without interference from Windows optimizations.

Disable in-game overlay

Disabling the in-game overlay is a method to troubleshoot Rainbow Six Siege crashes. The in-game overlay is a feature that displays additional information or allows access to certain functionalities while playing. Sometimes, this overlay can conflict with the game, causing instability and crashes.

By turning off the in-game overlay, you’re essentially removing this additional layer of information or features displayed during gameplay. This action aims to prevent any potential conflicts between the overlay and the game itself, potentially resolving crashing issues in Rainbow Six Siege.

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Limit framerate

If all else fails to fix your issue of R6S crashing on your PC, you can try limiting your in-game framerate. Unlocked framerates can lead to excessive CPU and GPU usage. Though this is usually not a problem with most games, some people can face crashing issues with Rainbow Six Siege. Therefore, we recommend limiting your framerate to a value slightly below the maximum FPS that you can achieve in-game.

  1. Open up the Windows File Explorer > go to the Documents
  2. Navigate to My Games > then to Rainbow Six-Siege.
  3. Open the folder located here with the long alphanumeric name.
  4. Open the file GameSettings.ini with a text editor like Notepad.
Rainbow Six Siege Keeps Crashing on Startup PC
Open GameSettings.ini (Image by eXputer)
  1. In the DISPLAY settings, find the FPSLimit setting, and set it to your decided framerate. For example, if you decided the maximum FPS to be 140, make sure that the text line reads FPSLimit=140.
Enter the desired framerate limit (Image by eXputer)

This may give a slight performance setback, but it should lead to a much smoother experience. Moreover, if you choose an appropriate framerate limit, then the performance setback is insignificant and should not be noticeable by most players.

My Thoughts

If you’re experiencing persistent crashing issues in Rainbow Six Siege on your PC, you’re part of a large community facing these disruptions. These crashes often stem from various sources such as corrupted game files, outdated device drivers, in-game overlay interferences, and even Windows firewall restrictions.

Fixing these crashes involves several steps. Verifying the game’s integrity through Steam or Ubisoft Connect, updating device drivers for graphics cards, and configuring Windows Firewall settings by adding exceptions for the game are some effective remedies.

Although there’s clear acknowledgment from official sources regarding the issue, the community is actively sharing solutions and seeking guidance. No specific platform or country seems exclusively affected, and it’s unclear if recent patches or firmware updates contribute to these crashes. The lack of definitive responses from the game’s official channels adds to the challenge of finding precise solutions to rectify Rainbow Six Siege crashes on PC.

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