Troubleshooting steps to resolve this error
Use the steps below to troubleshoot installation issues for Blizzard games.
Cannot install or patch Call of Duty: Modern Warfare
Cannot install or patch Call of Duty: Modern Warfare II
This error occurs when you have connected to our patch server but you cannot download patch information.
Cannot install or Patch Call of Duty: Black Ops 4
This error means Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.