Fix: Modern Warfare 2 Failed to Update Playlist Error

1. Reboot the MWII Game

First, you should try restarting the COD Modern Warfare 2 game to ensure there is no temporary glitch or cache data issue bothering you. Though a normal reboot of the game can fix minor bugs or glitches quite easily, some players might not benefit, but you should try it once before getting into the other workarounds.

2. Check the Internet Connection

You should check your internet connection properly to ensure there is no issue with the network’s stability or speed. A slow internet speed or unstable network can eventually cause several issues whatsoever. If you’re using a wired (ethernet) connection then try using a wireless (Wi-Fi) connection or vice versa to check for the issue. You can also try using a different network to cross-check it.

3. Run the Game as an Administrator

Make sure to run the game app file on your PC as administrator access to allow the User Account Control (UAC) access to the system. In some cases, your system requires the UAC access permission to run a program which is quite important. By following the steps below you’ll have to allow the admin access for once and it won’t ask you for the same again. To do so:

• Go to the installed Call of Duty: MWII game directory.
• Right-click on the application file on your PC.
• Click on Properties > Click on the Compatibility tab.

• Click on the Run this program as an administrator checkbox to enable it.
• Once done, click on Apply and then OK to save changes.
• Finally, just double-click on the game app file to launch it.

If in case, you’re running the game via the Steam or Battle.net launcher then perform the same steps for the respective game client too.

4. Check for COD MWII Updates

It’s highly recommended to manually check for the game update at your end to avoid any kind of pending game updates by following the steps below. An outdated game version can eventually cause multiple issues or glitches with the game launching as well as the gameplay experience.

For Battle.net:

• Open the Battle.net desktop app on your PC.
• Now, click on the COD: Modern Warfare II game.
• Click on the cogwheel icon (settings) next to the Play button.
• Finally, select Check for Updates and wait for the process to be completed.
• If there is an update available, make sure to download and install the game update.

For Steam:

• Open the Steam client > Go to Library.
• Click on COD: Modern Warfare II from the left pane.
• Steam will automatically search for the available update.
• If there is an update available, click on Update.
• Make sure to wait for some time until the update completes.
• Once done, ensure to reboot the PC to apply changes.

5. Verify and Repair the Game Files

Corrupted or missing game files installed on the PC can also cause multiple issues with the game launching or gaming experience. Luckily, you can easily verify and repair the installed game files on the PC version with the help of the game launcher by following the steps below.

For Battle.net:

• Launch the Battle.net client on your PC.
• Now, click on the COD: Modern Warfare II you’re trying to repair.
• Click on the cogwheel icon (settings) next to the Play button.
• Select Scan and Repair > Click on Begin Scan.
• Wait for the repair to finish > Once done, close the launcher and reboot the PC to apply changes.

For Steam:

• Launch Steam > Click on Library.
• Right-click on COD: Modern Warfare 2 from the list of installed games.
• Now, click on Properties > Go to Local Files.
• Click on Verify Integrity of Game Files.
• You’ll have to wait for the process until it gets completed.
• Once done, restart your computer.

6. Disable Windows Firewall

It seems you’re using the default Windows Firewall protection on your PC to maintain security. However, in some cases, Windows Firewall can trouble to access online content by connecting to the servers. It’s recommended to temporarily disable the Firewall program by following the steps below.

• Click on the Start Menu > Type Windows Defender Firewall and open it.
• Next, click on Turn Windows Defender Firewall on or off from the left pane.
• Select the Turn off Windows Defender Firewall (not recommended) option for all domains.
• Once done, click on OK to save changes > Reboot your PC to apply changes.

7. Disable Windows Defender

You should also turn off the Windows Defender antivirus program temporarily on your PC to ensure there is no issue with the game file blocking. To do so:

• Press the Win+I keys to open Settings.
• Click on Update & Security > Click on Windows Security.
• Click on Open Windows Security > Go to Virus & threat protection.
• Now, click on Manage settings > Just turn off the Real-time protection toggle.
• If prompted, click on Yes to proceed further.

Please Note: If you’re using any other third-party antivirus program on your PC then ensure to turn it off from its settings menu.

8. Try Deleting the ‘Main’ folder

If none of the methods worked for you then make sure to delete the ‘Main’ folder from the installed game directory of Call of Duty Modern Warfare II. You can follow the steps below to easily fix the Call of Duty Modern Warfare 2 Failed to Update Playlist Error on your PC.

• Open the Steam launcher > Go to Library.
• Now, right-click on Call of Duty Modern Warfare 2.
• Select Browse Local Files > Head over to the installed game directory.
• Open the main folder inside it and delete the common files/folders like data0.dcache, data1.dcache, toc0.dcache, toc1.dcache.
• Once these files/folders are deleted, just reboot the PC to apply changes.

That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.