Fix Steam Bex error once and for all with these simple solutions

by Madalina Dinita
Madalina Dinita
Madalina Dinita
Windows & Software Expert
Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer. She is interested in all things technology, especially emerging technologies... read more
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steam error bex
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Steam is without a doubt the best platform for gamers, but many gamers reported Steam Bex error on their PC. BEX is short for Buffer Overflow Exception, and most of the time BEX-related crashes are associated with problems with Windows Data Execution Prevention, or DEP for short.

If Steam client is blocked from accessing memory on your system, you might encounter this error, but there’s a way to fix it.

How to fix Steam Bex error? This error is usually caused by Data Execution Prevention feature, so be sure to disable it from Advanced system settings or by using Command Prompt. If that doesn’t work, try running Steam in Compatibility mode or reinstall the affected game.

How can I fix Steam Bex error on my PC?

  1. Disable peripheral features
  2. Run Steam in Compatibility Mode
  3. Disable Data Execution Prevention
  4. Reinstall Steam

1. Disable peripheral features

Certain peripheral devices can lead to Steam Bex error on your PC. If you’re using a device that the Synapse technology we suggest you disable it. Also, disable data tracking in the status section of your peripheral to fix this problem.

2. Run Steam in Compatibility Mode

If you’re still facing Steam Bex error, we recommend trying to run Steam in Compatibility Mode. To do so, follow these steps:

  1. Locate your Steam installation directory.
  2. Now, right click on Steam.exe, and choose Properties.
    properties steam error bex
  3. Next, click on the Compatibility tab. Check Run this program in compatibility mode for and select the desired version of Windows.
    compatibility mode steam error bex
  4. Click Apply and OK to save changes.
  5. Double click on Steam.exe to launch Steam.

If this method doesn’t help, try using different settings for Compatibility mode.

3. Disable Data Execution Prevention

Since Steam Bex error is related to DEP, we can try disabling it. In order to do this follow these steps:

  1. In the Start Menu open Control Panel.
  2. Open System and Security, and select System.
  3. Now select Advanced System Settings.
    advanced system settings steam error bex
  4. Click Settings in the Performance section.
    advanced settings
  5. Go to the Data Execution Prevention tab.
  6. Disable the service, and click OK to exit.

In Command Prompt:

  1. Start Command Prompt with administrator rights.
  2. Now type
    bcdedit.exe /set {current} nx AlwaysOff 

    and press Enter. To enable DEP, run this command:

    bcdedit.exe /set {current} nx AlwaysOn
  3. Wait till you receive the operation was successful message and close the window.

4. Reinstall Steam

If the previous solutions didn’t help, select the Verify or Repair for any game in your Steam client. In the event that the issue is not resolved, uninstall and reinstall your game.

We hope that these solutions were able to help you fix Steam Bex error. In the meantime, let us know in the comment section any potential solutions that you found on your own.


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