Information on the BLZBNTBTS00000011 error

Information on the BLZBNTBNA0000000C error

Battle.net desktop app information

Information on moving Blizzard games to a different hard drive

Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.

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.

Your installation could not be started. Please try again.

Information on error BLZBNTBTS0000000D

Troubleshooting step for connection-related problems on Windows.