How to obtain error logs for Blizzard games

Information about this error when redeeming a key in your account

What to do if you have trouble with the captcha

Information on Error BLZBNTAGT00001399

Troubleshooting steps for disconnections in StarCraft II

How to install a Blizzard game you already own on a different computer

Troubleshooting step for connection-related problems on Windows.

You have attempted to connect to an invalid server. If this problem persists, please contact Customer Support.

This article covers unexpected Blizzard Update Agent errors.

We're having trouble starting the Battle.net desktop app. Please try again. If the problem persists, try restarting your computer.