Troubleshooting for game crashes with error "The application encountered an unexpected error"
Some overlay programs can cause Blizzard games to crash.
Troubleshooting for Warcraft III: Reforged crashing and freezing issues
Troubleshooting for Battle.net desktop app crashes.
Information regarding crashes accompanied by a Blue Screen
Information and troubleshooting on error BLZBNTBNA00000005
Information on Crash Bandicoot 4: It’s About Time System Requirements
Information on error BLZBNTBNA000001F4.
How to reset in-game options
Information about what to do if you are experiencing reduced performance on the Beta version of the Battle.net Desktop App