If you are receiving unhandled exception errors, follow the steps below.

Troubleshooting for error BLZBNTBTS0000000C

What to do if you experience the game switching monitor settings from full screen to windowed when launching, or during gameplay for Overwatch.

A permissions issue is preventing the Battle.net desktop app from renaming a file during an update.

Troubleshooting for Overwatch 2 Error: Unable to download data (Nintendo)

Troubleshooting for Overwatch 2 Error: Unable to download data (Xbox)

Information about this error when login to Diablo II (2000)

The Battle.net desktop app is unable to find your game installation in the directory selected.

You have been disconnected. (BLZ51901017)

This article covers unexpected Battle.net Update Agent errors.