Troubleshooting for problems installing or patching the Starcraft II game client

After the start of StarCraft II there is a loading bar with an empty error message and it loops vorever.

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

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

How to enable maximum download rate

Failed to download data. Please check your network connection.

This error happens when the game cannot read or modify important game files.

Addressing issues when Blizzard Application is stuck on Downloading New Files when launching or installing.

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

Troubleshooting steps for IGR owners who have partnership with Blizzard on commonly encountered issues.