Security software which can be used to resolve virus and malware infections.

How to report a bug in Diablo III

Troubleshooting steps to resolve performance problems in Diablo III.

What to do if the mouse cursor is not clicking at the same place it appears on screen.

How to resolve the issue when the mouse cursor is missing

If you encounter a bug in one of our games, please report it to us.

What to do when you receive an error when adding a phone number to your Battle.net account

A guide for releasing and renewing your IP address and flushing the DNS resolver cache.