- Go to the installed game directory on the PC.
- Right-click on the COD MWIII.exe application file.
- 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.
3. Check Your Internet Connection
You can also check the internet connection at your end to see whether it’s working fine or not. A slow or unstable network connectivity can trigger several matchmaking or server connectivity issues. In some cases, too many devices are connected to the same network, which can also reduce the data speed. If you’re using Wi-Fi, try using an ethernet connection for better stability. Otherwise, try using a different connection instead.
4. Update COD Modern Warfare III
It’s always recommended to manually check for the Call of Duty Modern Warfare III game update on your PC by following the steps below. An outdated game patch version might trigger several issues with the game’s launching.
Battle.net:
- Open the Battle.net client.
- Select Modern Warfare III from the library.
- Click on the cog wheel icon next to the game.
- Click on Check for Updates.
- If an update is available, just download and install it.
Steam:
- Open the Steam client > Go to Library.
- Right-click on Modern Warfare III > Select Properties.
- Click on Updates > From Automatic Updates, select Only update this game when I launch it.
- Now, launch Modern Warfare II > Wait for it to download whenever available.
- Go back to the Updates section and select High Priority – Always auto-update this game before others (if you want).
5. Scan and Repair the Game Files
Sometimes corrupted or missing game files on the PC might also trouble you while starting the game. It’s always better to verify and repair the game files by following the steps below on your PC to avoid errors.
Battle.net:
- Open Battle.net > Click on Modern Warfare III.
- Select the Cog Wheel icon next to the Play button.
- Now, select Scan and Repair > Wait for the repair to complete.
Steam:
- Open the Steam client > Go to Library.
- Right-click on Modern Warfare III in your library.
- Go to Settings and select Properties.
- Click on Local Files and select Verify integrity of game files.
- Wait for the process to complete.
6. Disable Overclocking
Sometimes, an overclocked CPU or GPU on the PC might cause conflicts with the other hardware, which may trigger a bottleneck issue. It’s better to temporarily disable or restore the overclocked CPU/GPU to the factory default so that you can check out the potential reason behind the crashing issue. Multiple tools are available online to adjust overclocked CPU or GPU on the PC such as MSI Afterburner, Riva Tuner, AMD Ryzen Master, EVGA Precision X, etc.
7. Disable Nvidia Reflex and On-Demand Texture Streaming
If you already have enabled the On-Demand Texture Streaming feature in the Call of Duty Modern Warfare III game, it may sometimes cause the error code 0xc0000005 (N). So, you can try disabling this option and check if it helps or not. To do so:
- Launch the MW3 game > Head over to the Settings menu.
- Go to the Graphics section > Choose the On-Demand Texture Streaming option.
- Make sure to set the value to OFF.
- Then Disable Nvidia Reflex and save changes.
8. Update the Graphics Driver
An outdated or corrupted graphics card driver can trigger multiple game or system performance issues while running programs. It’s highly recommended to check the graphics driver update. To do so:
- Press the Win+X keys to open the Quick Link Menu.
- Click on Device Manager from the list > Double-click on Display adapters.
- Right-click on the dedicated graphics card that you’re currently using.
- Click on Update driver > Choose Search automatically for drivers.
- If there is the latest update available, it’ll automatically download & install the latest version.
- Once done, restart the computer to apply changes immediately.
Alternatively, you can manually download the latest version of the graphics driver and install it on the PC via the official website. Make sure to download the graphics driver file respective to your graphics card model and manufacturer.
9. Check for Network Driver Updates
It may also be possible that somehow your networking driver becomes outdated for a while and that’s why you’re encountering issues with the server connectivity. To do this:
- Press the Win+X keys to open the Quick Link Menu.
- Select Device Manager > Double-click on Network adapters.
- Now, right-click on the active network adapter.
- Select Update driver > Choose Search automatically for drivers.
- If there is an update available, it’ll automatically download and install the update.
- Once done, you can restart your computer to apply changes.
10. Adjust In-Game Graphics Settings
Well, the graphics shader quality eventually makes Modern Warfare III more cinematic and realistic but increases too much pressure on the graphics card and system resources which might trigger 0xC0000005. It’s always recommended to set Shader Quality to Low. Additionally, turn off the V-Sync option. Reduce other graphical settings to medium to get better performance.
11. Close Higher Resource Consuming Tasks
Unnecessary background running tasks or programs can eat up a lot of system resources like CPU or Memory usage literally reducing system performance. Hence, the startup crashing, lagging, and not loading issues appear quite often. Simply, close all the third-party unnecessary background running tasks completely. To do this:
- Press the Ctrl+Shift+Esc keys to open up Task Manager on the PC.
- Now, click on the Processes tab > Click to select the unnecessary task. [Memory consuming task]
- Click on End Task to close it > Do the same steps for other unnecessary third-party tasks too.
- Once done, restart your system to apply changes.
12. Run MW3 with DirectX11
The chances are high that somehow conflicts with the DirectX version installed on your system is causing the Modern Warfare 3 Error Code 0xc0000005(0) N on Windows. You can try running the game with DirectX11 forcefully via the client to check if the problem still appears or not. To do that:
- Open the Battle.net client > Select All Games.
- Click on My Games > Scroll down to the Modern Warfare 3 game icon.
- Now, right-click on it > Select Options.
- Click on Game Settings > Check for the Additional command line arguments box.
- Type -d3d11 in the box and click on Done.
- Finally, restart the game to check for the issue again.
13. Disable Nvidia Highlights
In case, you’re encountering the Modern Warfare 3 Error Code 0xc0000005(0) N with the Nvidia GPU card quite often then try disabling Nvidia Highlights from the settings menu. Several reports did claim that disabling this feature has done the trick.
14. Turn Off G-Sync
Sometimes turning off the G-Sync feature can also come in handy for the Nvidia GPU card users as it may conflict with the game’s refresh rate.
- Right-click on an empty space on your desktop.
- Click on the Nvidia Control Panel option.
- Click on the 3D Settings menu from the left pane.
- Select the Manage 3D Settings option.
- Then go to the Program Settings tab > Click on the Add button.
- Now, browse and select the MWIII.exe file to add the game.
- After that select your game and click on Specify the settings for this program.
- Click on the Vertical sync feature.
- Set the value of Vertical sync to OFF.
- Once done, relaunch the game to check for the error.
15. Disable Windows Firewall
Windows Firewall basically prevents unauthorized ongoing connections from the PC to online servers. You can try turning it off temporarily to check for the issue again.
- Open the Start Menu > Type Windows Firewall to search for it.
- Click on Windows Defender Firewall from the search result.
- Now, click on Turn Windows Defender Firewall on or off from the left pane.
- Then just Turn Off all the Private, Domain, and Public Network Settings options.
- Finally, click on OK to save changes.
16. Turn Off Antivirus Protection
You can also try turning off the Windows Defender antivirus protection on your PC to ensure there is no antivirus software blocking the game files from running properly.
- Press the Win+I keys to open Windows Settings.
- Click on Update & Security > Click on Windows Security from the left pane.
- Now, click on the Open Windows Security button.
- Go to Virus & Threat Protection > Click on Manage Settings.
- Next, you’ll need to Turn Off the Real-time Protection toggle.
- If prompted, click on Yes to proceed further.
Note: If you’re using any other third-party antivirus program on your PC then just turn off the real-time protection feature.
17. Reinstall COD Modern Warfare III
If none of the methods worked for you then make sure to uninstall and reinstall the COD: MW3 game on the gaming device by following the steps below. Sometimes it can be better to reinstall the game to clear out any potential glitches or game file installation issues.
For Battle.net:
- Open the Battle.net client.
- Select Call of Duty: Modern Warfare III from the left panel.
- Choose the Options menu on the left side.
- Click on Uninstall Game > If prompted, confirm the uninstallation process.
- Once done, close the Battle.net launcher, and reboot the PC.
- Then open the Battle.net launcher again > Start installing COD: MW3.
- Click on the Options menu > Select Modify Install.
- Select the mode that you want to install and select Confirm.
- Finally, select Start Install > Wait for it to complete.
- Launch the game and enjoy!
For Steam:
- Open the Steam client on your PC.
- Go to Library > Right-click on COD MWIII.
- Select Uninstall > Click on Delete to confirm.
- Wait for the uninstallation process to complete > Exit the Steam client.
- Now, open the File Explorer application.
- Copy-paste C:\Program Files (x86)\Steam\steamapps\common on the address bar and hit Enter to search for the location.
- Go to the COD MW3 folder > Simply Delete the folder completely.
- Reboot the PC to apply changes > Open Steam Store and Reinstall the COD MWIII game again.
I hope this guide was helpful in resolving the Error Code 0xc0000005(0) N on your PC. If you have any questions, feel free to leave a comment below. For those who are experiencing specific issues like getting stuck on the loading screen, crashing issue, or the “Times Out While Checking Permissions” error, Unexpectedly Stopped Working Error, Multiplayer Not Working, or Shaders Optimization Every Time, it’s recommended to click on the provided link to get detailed troubleshooting steps and possible solutions. Always ensure your systems are up-to-date and be patient as fixes and updates roll out.
