In order to reinstall drivers and files for the latest OS X build, you can download a Combo Update.
You can find the latest Combo Update for your operating system located on Apple's Support Download page.
When an older OS has no more incremental updates, you will need upgrade to a new OS to obtain newer drivers and updates.
A Software Update is an incremental update of the Mac OS and its applications, Security Updates, device drivers, and firmware updates.
For Blizzard games, it is important to download and install all software updates, as our games are designed for the latest version of the supported system requirements.
See Apple's OS X: Updating OS X and Mac App Store app page for Software Update instructions.
During technical troubleshooting, you may be required to reinstall an OS update or driver.
Follow the instructions located on the Upgrading to OS X Mountain Lion (10.8) support page Error 0 (Mac) The installer was unable to read the file _____.
This error may be caused by problems with the media…
Couldn't Write to Registry We couldn't launch %game% because your operating system wouldn't let us write to the registry. Failed to Launch Agent or Agent Switcher Failed to launch Agent or Agent Switcher.
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 instructions below will help you check and update your drivers.