How to Fix Modern Warfare 3 ‘Your Operating System Windows 8 is Not Supported’ Error?

Among the ever-growing list of errors players are facing with Call of Duty: Modern Warfare 3, some players are experiencing ‘Unsupported Operating’ error. It’s an error that can be frustrating to deal with since it prevents players from enjoying the game on their devices. 

If you’re wondering how to Fix Modern Warfare 3 ‘Your Operating System Windows 8 is Not Supported’ error, we’ve got you covered. In this article, we’ve prepared a list of all the possible fixes which can help you fix this error in MW3. 

Modern Warfare 3: How to Fix ‘Your Operating System Windows 8 is Not Supported’ Error?

The latest iteration of Call of Duty, Modern Warfare 3, brings back the fan-favorite operators of Task Force 141. The game doesn’t disappoint, however; players are having issues, one of which is the frustrating ‘Your Operating System Windows 8 is Not Supported’.

 If you’re dealing with this issue and have no idea how to fix it, here are all the ways that can be used to resolve this issue.

1. Update to The Latest Version of Windows

If you don’t know already, Call of Duty: Modern Warfare 3 requires you to use the latest Windows 10 or above to play. So, if you’re running into the ‘Your Operating System is Not Supported’ error, it’s most likely that your system is outdated. The fix is simple: you must update your Windows to the latest version.

In order to do so, head to settings, then Windows Update, and type Windows Update in the search bar. If there’s any update available, click yes on ‘Download and Install’. This will download and update your operating system to the latest version.

2. Ensure Your Game is Not in Compatibility Mode

Many players have been reporting that they’re getting the same error even though they have Windows 10 or above installed on their devices. 

If you’re still dealing with the ‘Your Operating System is Not Supported’ error, ensure that you’re not running on Compatibility Mode.

Switch Off Compatibility for Steam

In order to disable compatibility mode for Steam, follow these steps-

1. Close the Steam app completely

2. Click on the Steam Icon and choose ‘Properties.’

3. Head to the ‘Compatibility’ tab

4. Uncheck ‘Run this program in compatibility mode’

5. Select ‘Apply’ and then ‘OK.’

6. Launch your game, and you won’t be facing this error anymore

Switch off Compatibility Mode For the Game

You can also switch off the compatibility mode for the game by following these steps –

1. Launch Steam and then head to the Library

2. Right-click on the Modern Warfare 3 Icon and proceed to ‘Manage.’

3. Click the ‘Browse local files’ option

4. This will take you to the installation path of MW3

5. Look for ‘cod.exe,’ right-click, and choose ‘Properties;

6. Look for Compatibility Tab

7. Make sure to uncheck and ‘Run this program in compatibility mode’

8. Select ‘Apply’ and then ‘OK.’