Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.

Instructions on deleting the Battle.net Cache.

Failed to create a required directory. Please make sure you are running this program as an administrator and try again.

Information on error BLZBNTAGT00000867

Information on error BLZBNTBGS8000002A

Information on the error BLZBNTAGT00001389

Failed to create a required directory. Please make sure you are running this program as an administrator and try again.

Troubleshooting steps for performance-related problems.

Using LogGoblin to gather Battle.net Desktop App logs.

Antivirus software scans a computer's memory and storage to identify and eliminate viruses.