Troubleshooting steps for error "Game Initialization Failed" when launching a game

Information on error BLZBNTBNA00000001

This error may happen when something interferes with the uninstall process.

There's a problem with the connection to the Battle.net servers.

Information on troubleshooting the BLZBNTBTS0000005C error

This product is already installed.

This article covers unexpected Battle.net Update Agent errors.

Failed to create a required file. Please make sure you are running this program as an administrator and try again.

Failed to create a required file. Please make sure you are running this program as an administrator and try again.

Information on error BLZBNTBNU00001