Some overlay programs can cause Blizzard games to crash.
Information regarding crashes accompanied by a Blue Screen
Troubleshooting for game crashes with error "The application encountered an unexpected error"
Troubleshooting steps for IGR owners who have partnership with Blizzard on commonly encountered issues.
How to reset in-game options
How to obtain error logs for Blizzard games
How to disable the Game DVR and Game Bar in Windows 10
Antivirus software scans a computer's memory and storage to identify and eliminate viruses.
Information on error BLZBNTBNA0000012E
Information on error BLZBNTBNA0000012F