How to Solve: Stellaris Crashing at Launch in Windows

Stellaris is a real-time 4X grand strategy video game developed and published by Paradox Interactive. This game is available on multiple platforms, including Windows, macOS, Linux, PlayStation 4, and Xbox One. Recently, some Windows players report on the forum that Stellaris won’t launch or crashes at launch.

You might encounter the Stellaris crash or not launching due to software conflicts, driver issues, improper settings, and so on. In the following contents, you will learn about 5 possible solutions and you can try them one by one.

Now, let’s start our troubleshooting.

Fix 1: Modify the Properties Setting of Stellaris

If Stellaris crashes or won’t launch on your Windows computer, perhaps it lacks administrator permissions to access certain required files or is not compatible with your Windows version. And the fullscreen optimizations feature could also lead to the problem.

To fix the issue, you can follow the steps below to make some changes to the properties settings of the game.

Step 1: Right-click the shortcut icon or executable file of Stellaris and choose Properties.

Step 3: Check Disable fullscreen optimizations.

Step 4: Check Run this program as an administrator.

Step 5: Click Apply and OK to save changes.

After that, you can try launching Stellaris again to check the crashing issue has been resolved. If not, you can move on to the next solution.

Fix 2: Verify the Integrity of Game Files

When certain critical game files are corrupted or missing, the game is very likely to crash or fail to launch. In this case, you can try verifying the integrity of game files for your Stellaris in Steam.

You just need to:

Step 1: Open your Steam client and click LIBRARY.

Step 2: Find your Stellaris among the installed games. Right-click it and choose Properties.


Wait patiently until the verification process is done. Then, launch your game again to check the Stellaris crashing at launch issue has been removed.

Fix 3: Configure DEP Settings

Data Execution Prevention (DEP) is a Windows feature that helps protect against damage from viruses and other security threats. Some users have solved the Stellaris crash by turning on this feature, and you can also have a try.

Here’s a simple tutorial for you.

Step 4: In the new Performance Options window, click the Data Execution Prevention tab and check Turn on DEP for essential Windows programs and services only. Click Apply and OK to save the changed settings.

Once it’s done, go to check if you can launch Stellaris without the crashing issue.

See also: How to Disable DEP (Data Execution Prevention) Windows 10

As you know, the graphics card plays an important role in the proper functioning of video games. If your graphics card driver is outdated or corrupted, you might encounter Stellaris crashing at launch. Then, updating your graphics card driver to the latest version might fix the problem.

Step 1: Right-click the Start button and choose Device Manager to open it.

Step 2: Expand the Display adapters category, right-click your graphics card driver, and choose Update driver.

Step 3: Choose Search automatically for updated driver software to continue.

If Windows find the latest driver software for your device, just follow the onscreen instructions to install it properly. After that, restart your computer and check if the “Stellaris won’t launch” issue disappears.

Fix 5: Clean Boot Your Computer

As mentioned before, you might encounter Stellaris crashing at launch due to software or services conflict. If none of the above methods fail to fix the problem for you, you can try performing a clean boot for your Windows computer to find out the problematic software. Here’s what you need to do:

Step 1: Invoke the Run window, input msconfig, and press Enter to open System Configuration.

Step 3: Go to the Startup tab and click Open Task Manager to view the Startup section of Task Manager. Here, you need to disable all the listed items.

After your computer boots up, you can relaunch your game to test the issue. If you can launch Stellaris without any problems, you can go to enable these disabled items one by one to find the problematic one. Then, you can keep it disabled while you are playing the game or choose to remove it from your computer.


Position: Columnist

Amanda has been working as English editor for the MiniTool team since she was graduated from university. She enjoys sharing effective solutions and her own experience to help readers fix various issues with computers, dedicated to make their tech life easier and more enjoyable.

She has published many articles, covering fields of data recovery, partition management, disk backup, and etc. In order to provide more useful tips and information, she is still committed to expand her technical knowledge.

Originally published at on January 19, 2021.