Fix 2: Update GPU Drivers
In the case of a corrupted or outdated graphics card driver, this can cause multiple performance issues in a running game or system. You should check if the graphics driver needs to be updated. To do so:
- To open the Quick Link Menu, press Win+X.
- After that, select Device Manager from the list and then double-click Display Adapters.
- Select the dedicated graphics card you’re currently using and right-click.
- Select Search automatically for drivers under Update driver.
- Whenever a new update is available, it will automatically download and install it.
- You can apply the changes immediately by restarting your computer after completing the process.
Fix 3: Disable fullscreen optimizations.
You may be able to fix the compatibility issues for some PCs by turning off the Windows system’s fullscreen optimizations. Even though it is, by default, disabled, you should cross-check it to make sure that the fullscreen optimization hasn’t been enabled. In order to do so:
- Click on Library in the Steam client.
- Go to Manage by right-clicking on Call of Duty: MWII.
- Select Browse local files > Find the Call of Duty: MWII installation folder.
- Right-click On CallofDutyModernWarfareII.exe and select Properties.
- To disable fullscreen optimizations, click on Disable fullscreen optimizations in the Compatibility tab.
- To save the changes, click Apply and then OK.
Fix 4: Close Background Running Tasks
Running unnecessary background processes or programs on your computer is harmful, as they consume many CPU or Memory resources. Therefore, GPU not supported issues are quite common. Please eliminate all the unnecessary background tasks running in the background by closing all of them. Here’s how:
- To open Task Manager, press Ctrl+Shift+Esc.
- On the Processes tab, click the Unnecessary Tasks button and select the unnecessary tasks that use too much of the system’s resources.
- To close each task, click End Task.
- After you have completed this process, restart your computer.
Ideally, it would be best if you also changed the power plan on the computer since the Windows system defaults to the Balanced power plan. By adjusting the power plan, you can increase performance. It is crucial to remember that the performance plan can consume more power. Here’s how:
- Initially, to open the Run dialog box, press Win+R.
- You can open the Control Panel by typing it in the search field and clicking OK.
- Select Power Options (Power & battery) from the menu.
Fix 6: Chipset Drivers are Outdated
These issues might frequently occur if your PC’s chipset driver is outdated. The best thing you can do is to check for updates and fix the GPU not supported error or even avoid using the CPU entirely while playing games. Here’s how:
- To open the Quick Link Menu, press Win+X.
- From the list, click Device Manager > Double-click System Devices.
- From the list of chipset devices, right-click on the one you want to use.
- Select Search automatically for drivers under Update driver.
- This will automatically download & install the latest version if one is available.
- Restart the computer once you have completed the process to apply changes immediately.
Fix 7: Turn Off Antivirus Protection
If your PC has Windows Defender turned on, you must try turning it off to ensure that no antivirus software is blocking your game files from running correctly.
- To open Windows Settings, press Win+I.
- From the left pane, click on Update & Security > Windows Security.
- Select Open Windows Security from the menu.
- Navigate to Virus & threat protection > Manage Settings.
- Lastly, you will need to turn off Real-time protection.
- To proceed, click Yes if prompted.
The system boot-up issue was allegedly fixed by performing a clean boot on the PC due to a conflict between some apps and tasks starting at the very beginning. There are several tasks that constantly run and consume a significant amount of system resources. To do so, follow these steps:
- Initially, to open the Run window, press Win+R.
- To open System Configuration, type msconfig and hit Enter.
- To enable it, click on Hide all Microsoft services under Services.
- To turn off all services, click Disable all.
- To save changes, click Apply, then OK.
- To open Task Manager, go to Startup > Open Task Manager.
- Ensure that the startup task with the highest impact is selected on the Startup tab.
- To disable it, click Disable.
Fix 9: Reinstall COD Modern Warfare 2
To check if reinstalling COD Modern Warfare 2 on the PC fixes the GPU not supported error, try the methods above if none worked for you.
For Steam:
- Start Steam on your PC.
- Navigate to the Library > Right-click on COD Modern Warfare 2.
- Click on Uninstall > Delete to confirm.
- Follow the Steam client’s uninstallation instructions > Wait for the process to complete.
- You can now search for the location by copy-pasting C:/Program Files (x86)/Steam/steamapps/common in the address bar of File Explorer.
- You can delete the folder created by COD Modern Warfare 2 by going to its folder and clicking Delete.
- Once the changes are applied, restart the computer > Open Steam Store and reinstall COD Modern Warfare 2.
For Battle.net:
- You can uninstall COD MWII by opening the Battle.net desktop app > Select the game icon you wish to uninstall.
- To uninstall, select the drop-down menu underneath the play button.
- The changes will take effect once the PC has been rebooted.
- Lastly, open the Battle.net client and select the COD Modern Warfare II game from the list.
- After the installation is complete, restart your PC.
So, that’s how to fix the COD Warzone 2 or Modern Warfare 2 GPU not supported error. We hope that you find this article helpful. But if you need more info, comment below and let us know.
