What to do if your Battle.net installation button changes to a spinning icon and doesn't continue

What to do if you receive the error "Oh no! We couldn't find what we wanted to show you." when viewing Patch Notes in the Battle.net Desktop App.

Troubleshooting steps for this error in Diablo II (2000)

Buying Battle.net Balance as a gift

Information about a possible transfer of balance between different Blizzard accounts

Information on playing Battle.net games on the Game Pass service

What to do if you receive the error "We Can't Find That Battle.net Account" when logging into Battle.net

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

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

How to resolve this error when adding Balance to your account