Information about the Recruit A Friend feature in World of Warcraft, Hearthstone, and Heroes of the Storm.

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

What to do if you don't have the promotional Samsung cardback in Hearthstone

Troubleshooting problems with changing regions in Hearthstone on your mobile phone or tablet or PC.

Many common hard drive or OS problems on a Mac can be resolved by running Repair Disk.

Information on linking your Twitch or YouTube account to your Battle.net account.

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.

If you have issues with the sound in your game, such as skipping, popping, screeching, or no sounds at all, follow the steps below to troubleshoot the problem.

Damaged windows system files can cause a variety of issues playing games, and should be repaired to prevent problems.

Instructions on linking your MLG and Blizzard accounts