The Battle.net Deskop App can't be launched due to an operating system error.

If you do not have a decryption key, check the installation instructions for a point of contact.

Information on how to change the registered Battle.net account holder name

Information about players unable to complete the achievement "To the Afterlife"

Information on submitting supporting documentation

Troubleshooting steps for problems installing or patching Diablo Immortal

Troubleshooting steps for problems installing or patching Warcraft Rumble

What to do if there is a Game Version Error when launching Warcraft Rumble

How to change the country/region of residence on your Battle.net account

What to do if you cannot use the Magmammoth Harness to obtain the Magmammoth mount