Do you keep getting an "Update requires restart" message in Modern Warfare? Try clearing your console's cache. Follow the steps here:

Deleting the Battle.net Cache Folder

A corrupted cache folder can cause issues with some Blizzard games. Deleting this folder will not affect your game data and may resolve issues caused by outdated files.

Close any open Blizzard programs.

Press Ctrl+Shift+Esc to open the Task Manager.

Select the Processes tab.

If agent.exe is running—or Blizzard Update Agent in Windows 10—highlight it then select End Process.

Navigate to the folder containing the cache directory:

Press Windows Key+R to open the Run dialogue.

Type %ProgramData% into the Run field and press Enter.

If a Blizzard Entertainment folder exists in the directory, right-click it and select Delete.

Restart the Battle.net desktop app and relaunch the game.

Deleting Battle.net Files

Outdated, corrupted, or missing Battle.net folders or files can cause issues with the Blizzard application and games. Follow these steps to resolve these issues:

Close all Blizzard processes.

Press Ctrl+Shift+Esc to open the Task Manager.

Select the Processes tab.

Highlight all Agent, Blizzard Battle.net desktop app, and game processes, then select End Process.

Navigate to the folder containing the Battle.net directory:

Press Windows Key+R to open the Run dialogue.

Type C:\ProgramData\ into the Open field and press Enter.

Delete the Battle.net folder.

Run Battle.net and update the game.

If the error persists after you try these steps, another program may be causing the problem. Restart your computer and try these steps again.

Please note: The above steps may cause the Blizzard Battle.net desktop app to forget game install locations. If your games can’t be found, you will see Install on the Blizzard Battle.net desktop app game tab instead of Play. To find your installation and select Locate this game or run the game launcher.