Troubleshooting for problems installing or patching the Starcraft II game client

Use the steps below to troubleshoot installation issues for Blizzard games.

This error occurs when you have connected to our patch server but you cannot download patch information.

How to enable maximum download rate

Details of classic games patches, where to download them, and how to install the latest updates for classic games.

This error means Blizzard Agent (the process that installs and patches our games) couldn't stream necessary files.

This error means Blizzard Agent (the process that installs and patches our games) couldn't stream necessary files.

Instructions on how and where to download our games

What to do if you can't get the Battle.net App installer downloaded correctly.

Troubleshooting steps for "Waiting on Another Installation or Update" error when trying to update a game.