Information on the World of Warcraft: Companion App
More information about this error
During technical troubleshooting, it is sometimes necessary to fully uninstall and reinstall the Blizzard Battle.net desktop app.
Unable to add a companion to the collection
Unable to install Blizzard Battle.net Application after downloading from the website.
Troubleshooting for Blizzard Battle.net desktop application crashes.
Troubleshooting steps for disconnection problems with the Blizzard mobile app
Troubleshooting for errors installing a downloaded Battle.net setup.exe file.
Troubleshooting steps to help you connect to the Blizzard Battle.net desktop app.
Can't log into Blizzard website or get online when logging with the Blizzard Battle.net desktop app.