Troubleshooting steps to resolve this error

What to do if you are unable to install or patch Diablo III

Use the steps below to troubleshoot installation issues for Blizzard games.

Troubleshooting the Diablo II (2000) installer.

Patch Required. Please press the quit button below and download the patch.

Troubleshooting steps for problems installing or patching Hearthstone on mobile devices

Information on error BLZBNTBNA00000066

Information on error BLZBNTBNA00000067

Information on error BLZBNTBNA00000065

Cannot install or patch Call of Duty: Modern Warfare