Sadly, multiple players still encounter the same error even after trying recommended workarounds. Additionally, some found themselves banned account notice & some are getting the 33/39/45 Files Failed to validate error while launching the MWII game. Now, without wasting any more time, let’s get into it.
1. Reboot COD MWII or Warzone 2
First, you should restart the Call of Duty Modern Warfare II or Warzone 2.0 on your PC to ensure there is no issue with the temporary glitch and cache data. Though some players may not find it useful enough, you can try it once.
2. Run MWII or Warzone 2.0 as an Administrator
Ensure to run the Modern Warfare II or Warzone 2.0 game on the PC as an administrator to allow the User Account Control (UAC) access to the system. In some cases, your system requires the UAC access permission to run a quite important program. You can follow the steps below to give admin permission.
- Go to the installed Call of Duty: MWII or Warzone 2.0 game directory.
- Right-click on the game 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, 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,, perform the same steps for the respective game client too.
3. Check Updates for MWII or Warzone 2.0
Sometimes an outdated game version can trouble you a lot, triggering multiple issues while launching it. When upgrading the game on your specific device, follow the steps below.
For Battle.net:
- Open the Battle.net desktop app on your PC.
- Now, click on the COD: Modern Warfare II or Warzone 2.0 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 Steam > Go to Library.
- Click on COD: MWII or Warzone 2.0 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.
4. Verify and Repair Game Files
Sometimes missing or corrupted game files on the PC can trigger several issues with the game launching. So, you can verify and repair the game files on your Windows by following the steps below.
For Battle.net:
- Launch the Battle.net client on your PC.
- Now, click on the COD: MWII or Warzone 2.0 that 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 the Steam client > Click on Library.
- Right-click on COD: MWII or Warzone 2.0 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.
5. Allow MWII or Warzone 2.0 in Windows Firewall
You can follow the steps below to add the game executable file to Windows Firewall which will allow the system to run the game properly.
- Click on the Windows icon on the taskbar to open the Start menu.
- Open Control Panel by searching it > Go to Systems and Security.
- Now, open Windows Firewall.
- Select Allow an app or feature through Windows Firewall.
- Click on Change settings > Select Allow another app > Select Browse.
- Click to select Call of Duty: Modern Warfare II or Warzone 2.
- Then click on Add and make sure to save changes.
6. Add an Exception for MWII or Warzone 2.0 in Windows Defender
It’s also a better idea to whitelist or exclude the game application file on the security programs of your PC such as the antivirus software. In most cases, these security software applications can aggressively prevent the game launcher as well as the game programs to run properly on the PC. This specific issue also blocks ongoing connections from the system to the game servers. You can follow the steps below to whitelist the game file on antivirus.
- Press the Win+I keys to open Windows Settings.
- Go to Privacy and Security > Click on Windows Security.
- Click on Virus and threat protection > Select Manage ransomware protection.
- Select Allow an app through Controlled folder access > Click on Add an allowed app.
- Click on Browse all apps > Now, select Modern Warfare II or Warzone 2.
- Then click on Open > Make sure to save changes.
7. Turn Off Overlay Applications
You should try disabling background running third-party overlay apps that can trouble you a lot. Because those unnecessary overlay apps may trigger multiple conflicts while launching the game. You can follow the steps below to do so manually for a while to cross-check for the issue again.
Disable Discord Overlay:
- Open the Discord app > Click on the gear icon (Settings) at the bottom.
- Select Overlay under App Settings > Turn on the Enable in-game overlay.
- Click on Games > Select COD: MWII or Warzone 2.
- Make sure to turn off the Enable in-game overlay toggle.
- Once done, reboot your PC to apply changes.
Disable Xbox Game Bar:
- Press the Win+I keys to open Settings.
- Now, click on Gaming > Go to Game Bar.
- Turn Off the Record game clips, screenshots, and broadcast using the Game bar option.
- Once done, save changes, and reboot the PC to apply changes.
Disable Nvidia GeForce Experience Overlay:
- Launch the Nvidia GeForce Experience app > Go to Settings.
- Click on General > Disable the In-Game Overlay option.
- Once done, restart the PC to apply changes.
Disable Steam Overlay:
- Open the Steam client > Click on Library.
- Right-click on COD: MWII or Warzone 2 > Click on Properties.
- Click on General > Turn OFF the Enable the Steam Overlay while in-game option.
- Once done, reboot the PC to change the effects.
Some PC gamers or advanced users do also use some other overlay apps such as MSI Afterburner, Rivatuner, RGB software, etc like Razer Synapse or Logitech G Hub. If you’re also using any other mouse or keyboard software or any RGB tool which isn’t necessary that much during gaming then it’s better to turn them off.
8. Turn Off In-Game Voice Chat
It’s also recommended to disable the in-game voice chat option which might fix game-launching errors in some cases. Once you’re inside the MWII game menu, press the Tab key to open the in-game K/D Ratio menu. Now, right-click on the mouse to enable the cursor. Then click on Mute All.
9. Enable On-Demand Texture Streaming
Some of the affected players did find this trick useful. So, you can also try enabling the on-demand texture streaming option manually from the game menu.
10. Update Graphics Drivers
Another thing you should do is update the graphics driver version on your PC by following the steps below. If there is an update available, make sure to install the same. An outdated GPU driver can cause several issues with the program launching such as in games or even during gameplay sessions. To do that:
- Press the Win+X keys to open the Quick Link Menu.
- Click on Device Manager from the list.
- Double-click on Display adapters to expand it.
- Right-click on the dedicated graphics card that’s active or you’re using.
- Now, click on Update driver > Click on Search automatically for drivers.
- It’ll now automatically check for the available update then download and install the latest version.
- Just wait for the same and reboot the PC to apply changes.
If there is no update available for your GPU then you can go to the official graphics card website from the links below and search for the model of your graphics manually. Make sure to download and install the latest GPU driver for your model number as per the manufacturer.
11. Rollback Graphics Drivers to the Previous Stable Version
If upgrading the graphics driver didn’t help you then make sure to roll back or downgrade the current graphics driver version to the previous stable build manually by following the steps below.
- Press the Win+X keys to open the Quick Link Menu.
- Select Device Manager > Double-click on Display adapters to expand it.
- Right-click on the active graphics card > Select Properties.
- Click on the Driver tab > Click on Roll Back Driver.
- Follow the on-screen prompts to complete the process.
- Once done, make sure to restart your computer to apply changes.
Please Note: If the Roll Back Driver option is greyed out, no previous version is available on the system to roll back. In that case, you can visit the official manufacturer’s website for the graphics and download an older stable version, then install it on the PC.
12. Set a Fixed FPS Count (60-75)
After limiting the FPS count in the game, several players have fixed multiple issues with the game launching on the PC. Head over to the in-game Settings menu and limit FPS to 60-75 maximum for your mid-budget gaming setup. If you have a higher-end gaming configuration, you can set it to 100-120 for optimal and consistent performance.
13. Turn Off Parallax Effects
Some reports also claim that turning off the Parallax Effects from the in-game Settings menu can help fix the game_ship.exe error. You can find Parallax Effects under the Interface menu.
14. Set a Lower Render Resolution
You can also try setting up a lower render resolution from the in-game settings menu to ensure there is no issue with the graphical glitch. A couple of players have found this trick helpful. So, you might try it out.
If none of the methods worked for you, you should contact Activision Support for additional help and try creating a support ticket to get a faster resolution. Submitting bugs or errors to the developers will help them to investigate the issue deeply.
That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.
Hi,
ich konnte den Fehler beheben indem ich die Mainbord Batterie entfernt hatte und das BIOS dadurch zurücksetzt wurde.