More information about this error
Blizzard Battle.net desktop app information
Information on the World of Warcraft: Companion App
During technical troubleshooting, it is sometimes necessary to fully uninstall and reinstall the Blizzard Battle.net desktop app.
App gives update error, but no update available in the store.
Completing a Champion mission in the World of Warcraft Companion App did not grant credit or reward in-game.
How to disable the mature language filter.
The Blizzard Battle.net Deskop App can't be launched due to an operating system error.
Information on Blizzard Phone Notifications
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.