World of Warcraft does not support 32-bit operating systems.

Minimum and recommended system requirements for Warcraft III Reforged.

Troubleshooting the Diablo II (2000) installer.

The system requirements for StarCraft II on Mac and PC

WoW Token was misplaced or disappeared from inventory

Player reports they had heroes they use to play in Diablo III and they're now missing.

Troubleshooting steps to resolve voice chat problems in Heroes of the Storm

Diablo III System Requirements 

Troubleshooting steps for latency or connection issues when playing Blizzard games.

How to submit feedback for particular matchups or units for StarCraft II