You can download old versions of macOS from the Mac App Store or as direct downloads from Apple's website. Create a bootable ...

Newbies to the Mac, especially those finding boxes of older Mac OS X discs in garage sales, flea markets and on eBay, may believe they can install the software on their Mac. Unless that software ...

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...

Difference between Software Update and standalone download versions There are two versions of Mac OS X 10.4.1 available. The version that can be obtained through Software Update is machine-specific (i ...

Apple made Mac OS X Lion and Mac OS X Mountain Lion available for download for free here in the summer of 2021. This is the first time either version of the software was available for free. All ...

UTM is a cross-platform emulator that allows you to run macOS, Windows, or Linux. Here's how to use it to run very old versions of Apple's Mac operating system. But there's another great free OS ...

Apple’s new operating system, Mavericks has been available to download since the end of October 2013. It’s a free upgrade for all versions of Mac OS X going back to 2009 – that’s Snow Leopard and ...

Eric Benfer (Systems Administrator at Johns Hopkins Applied Physics Lab) writes of an unexpected problem involving two different versions of the Mac OS 9.1 Software Install CD that shipped with Power ...

In building Snow Leopard, the latest version of Mac OS X (version 10.6), Apple focused more on under-the-hood improvements to boost speed and stability than on adding new features. That contrasts with ...