Minimum and recommended system requirements for World of Warcraft and the Dragonflight expansion
Minimum and recommended system requirements for Wrath of the Lich King Classic
Performing a scan of your computer's physical memory can help identify possible errors.
Instructions on how to delete your Battle.net files.
Diablo III Supported Video Cards
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.
The system requirements for StarCraft II on Mac and PC
Troubleshooting steps to help you connect to Hearthstone
Instructions for troubleshooting your network to allow Blizzard services to work properly.
Troubleshooting the Diablo II (2000) installer.