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Modern Warfare 2 Not Launching On Steam – How To Fix

Looking to fix Modern Warfare 2 not launching on Steam? Here's your guide for it.

MW2 is not launching on Steam and players are looking to fix it. While the early campaign and the new modes have been fun for players, the errors and bugs are kind of frustrating. Modern Warfare 2 recalls many iconic characters including Task Force 141. So naturally, players are hopping in to get a taste of the game. Since it is in its early days, Infinity Ward has to tackle all these errors. Rest assured, once they are removed you can get back to some gaming time. As you can’t rely on devs to fix it immediately, here are some ways to solve this issue.


How to Fix MW2 Not Launching on Steam

Modern Warfare 2 Not Launching on Steam

There might be multiple reasons behind Modern Warfare 2 not launching on Steam. However, it is difficult to diagnose the problems. But there are a few troubleshooting tips and potential fixes that are working for a lot of players. Here’s how you can fix MW2 not launching on Steam.


Verify Integrity of Game Files

Since this error most likely occurs because of corrupt or deleted game files, it is best if you go to the Verify Integrity of Game Files. We list below the methods to do it on Steam. However, the process will be similar for the rest:

  • Open Steam and then Go to Steam Library.
  • Navigate to COD MW2 and then right-click.
  • Click on Properties from the drop-down menu.
  • Locate Local Files and Click on Verify Integrity of Game Files.

If this doesn’t fix MW2 Not Launching on Steam, continue with the other troubleshooting tips.


Update GPU Drivers

GPU Drivers are one of the main components of PC gaming and they need to be kept updated constantly. If your GPU isn’t updated you are more likely to face Modern Warfare 2 not launching on Steam error. To fix it, simply head to the website of your GPU driver to check and download updates. Nvidia users can click here and AMD users can follow this link.

Run MW2 As Admin

  • Right-click on the MW2 application and then click on Properties.
  • While in the Properties tab, look for the Compatibility section and select it.
  • Over here, look for the option Run as Administrator and check the box.
  • Along with that, check the Disable Fullscreen Optimizations box.
  • Lastly, click on Apply and then click on OK.

That should fix MW2 not Launching on Steam. If it does not, try the next fix.


Graphic Settings

  • Head over to the Graphics Performance Preference from your Windows Graphic Settings.
  • While you are here, click on Browse and then select COD MW2 and add it.
  • Once it is there, click on COD MW2 and then choose High Performance. This will help you fix MW2 Not Launching on Steam.

Internet Connection

Firstly run a diagnostic on your Internet Connection and make sure it is working. While you are at it, make sure there are no major downloads that are eating up the bandwidth. Next, restart your modem and router to clear some cache and avoid overheating it.

Lastly, you will have to reinstall Modern Warfare 2 and Steam since it is related to the platform. But before you do that, you can also contact Activision Support & Steam Support to assist you with this error.

That’s all there is on how to fix Modern Warfare 2 Not Launching on Steam. While you are here, make sure you do not miss out on our MW2 Wiki for more guides at Gamer Tweak.