Problems with patching may be resolved by disabling the read-only setting on system folders.

How to repair a game through the Battle.net Desktop App

Information about the Cross-Play and Cross-Progression features

How to set up the same Authenticator on more than one device.

Read about the social media channels you can use to get help and information from Blizzard's support team.

To show hidden files and folders, follow these instructions.

A guide for diagnosing and repairing problems with physical hard drives.

Steps for resetting the Windows Management Instrumentation Repository

Instructions on how to delete your Battle.net files.

How to reset video card settings.