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

Information on error BLZBNTBNU00002

This error occurs when your connection to our servers is blocked. This may be caused by a third-party program.

This article explains the process of creating system files