How to submit feedback or report an issue with the matchmaking system

Information on error BLZ51900002

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

How the silence penalties work

What to do if you have lost access to your Blizzard Data File.

How to obtain error logs for Blizzard games

Troubleshooting for issues loading the BattleTag or Real ID friend list

What to do if you have bought Crash Bandicoot 4 but receive prompts to repurchase it

Information on how rating for Hearthstone's battlegrounds is calculated.

Information on how to contact Blizzard Entertainment for any accessibility concerns with our games, support or products.