Decryption key is invalid or missing. Please uninstall and reinstall.

Information on error message BLZBNTBGS8000001C.

Information about error BLZBNTKEY00002036.

How to redeem a code for a game, a product, or Blizzard Balance

How to resolve this problem when downloading an update

I have more than one Warcraft III: Reign of Chaos key claimed on the same Battle.net account.

Instructions on getting Blizzard games to play on your TV.

This error means the Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.