Call of Duty: Warzone is a popular free-to-play battle royale multiplayer video game published by Activision on March 10, 2020. Today, based on its extensive appreciation, the game is available on PlayStation 4, PlayStation 5, Xbox Series X and Series S, Microsoft Windows platforms. Anyway, the Call of Duty: Warson game has received a lot of positive reviews from its critics since its inception and has now surpassed 100 million active players.

Nowadays, several users complaining about the Memory Error 0-1766 on COD Warzone and keep them from playing the game. As per our research, we have found that there are several possible causes for the same issue, such as mounted cache files, multiple hardware parts running together and the composer command failure. Forget the reason you have now and follow the solutions we listed down to resolve the same error quickly. Let’s check out them in detail. 

Some Workarounds:

  • Check your internet connection. If the internet connection is poor, it may cause to occur the Memory Error 0-1766 issue.
  • You can use a wired internet connection for gaming; it is much faster and trusty.
  • In case you are using a Wi-Fi connection, then power cycle the router and modem. (unplug the power cable from the devices and re-plug it after one or two minutes.)
  • Disconnect unneeded devices from your Wi-Fi connection.
  • Restart your PC, game and console

Fix 1: Disable Background Running Apps and Games:

As a first resort to escape from the Memory Error 0-1766 on COD Warzone, you can close all the games and apps running in the background. To disable unnecessary games and apps, follow these steps, 

On Xbox:

  • Firstly, press the Xbox button, now the main sidebar appears before you.
  • From the list, select unnecessary games and apps and select the Menu button (the three-line button).
  • Then select the Quit tab to close the background running apps and games.

On Computer:

  • Firstly, right-click over the Start button and select Task Manager from the context list.
  • Then select the Processes tab from the top vertical menu and select the program/processes consuming too much CPU or memory resources. 
  • Once you find one, right-click over the program and click on End task.

Fix 2: Restore the Licenses:

As per some users, they managed to get rid of the Memory Error 0-1766 by restoring the licenses. So here also we recommend the same. To restore the licenses, you can follow these steps,

  • Firstly, launch the PlayStation profile and select Settings.
  • Then go to the Account Management menu and select the Restore Licenses option. And let give some time to restore your licenses.
  • Once done, restart the device and check whether the issue is resolved for you or not.

Fix 3: Adjust Display Settings:

Some users resolved the Memory Error 0-1766 by adjusting the Display settings. You need to turn off 4K, disable the HDR feature, lower down the Resolution to 1080p. To change all these settings, you can follow these steps, 

  • Firstly, press the Xbox button, then click on the Settings icon.
  • Then select Display & Sound from the left pane menu and select Video output.
  • Now adjust the Resolution to 1080p, under the Display section.
  • Further, select General Video modes under the Advanced section and untick the checkbox beside the options, Allow 4K and Allow HDR.
  • Once done, see the result.

Fix 4: Clear Mac Address:

Clearing the Mac address is another solution to resolve the Memory Error 0-1766 issue, as well as this trick, reboots your Xbox also. To do so,

  • Firstly, press the Xbox button and select Settings.
  • Then go to Network Settings->Advanced Settings->Alternate Mac Address.
  • Click on the Delete now tab to clear the Mac address. Now the Xbox will restart, and the said error will be disappeared for you.

Fix 5: Verify and Repair Game Files:

Sometimes the Memory Error 0-1766 issue can occur due to corrupted game files. Here the best solution is a quick scan and repairs of the game files using the Battle.net app. To verify and repair game files, you can follow these steps,

  • Firstly, launch the Battle.net client and navigate to the COD Warzone page.
  • Then beside the Play button, click on the gear-shaped icon and select the Scan and Repair option from the menu.
  • Now let the scanning process complete on its own; once done, relaunch the game and check improvement. 

Fix 6: Reset Xbox:

Some users finally managed to escape from the Memory Error 0-1766 by resetting the Xbox. So here we strongly recommend the same for you as well. To reset the Xbox, you can follow these steps,

  • Firstly, click on the Xbox button and select Profile and System to launch the Settings option.
  • Then select System and click on the Console info option.
  • Now from the left side of the screen, click on Reset console.
  • Once done, the said error will get resolved for you now.

Fix 7: Perform Clean Boot:

If any of the above fixes did not help you resolve the Memory Error 0-1766 issue for you, you need to perform a clean boot. To perform a clean boot, you can follow these steps,

  • Firstly, in the taskbar search box, type System Configuration and open the relevant search result.DCFWinService High CPU Usage on Windows Error
  • Then go to the Services tab from the top horizontal menu and tick the checkbox beside Hide all services and click on the Disable all button and OK.System Configuration
  • Then move to the Startup tab from the top horizontal menu and click the Open Task Manager link.
  • In Task Manager, click on the Startup tab and select and disable all items from the list.
  • Once done, restart the System and check improvement.
  • If the issue is resolved, then again go to the System Configuration window, go to the Startup tab and enable all the items one by one until you find the problematic one. 
  • Once found, Uninstall that service from the System.

However, these are all about the Memory Error 0-1766 issue on COD Warzone and its sure solutions. We believe we listed all the possible fixes for the same error; if you find any additional fixes, then comment in the below comment box.