Apple has released Mac OS X Lion in the Mac App Store for $30. Separately, Apple will also begin offering Lion on a USB thumb drive in Apple stores come August. Right now, you can grab Lion from the ...

Apple today released macOS 12 Monterey, and whenever a new operating system is released for the Mac, some users prefer to perform a clean installation. This article explains how to perform what is ...

Apple rolled out the public version of macOS Sonoma on September 26, 2023, making it available to download and install on any supported Mac desktop and MacBook, including some older models that pack ...

If you receive an error message indicating that your Mac's firmware is out-of-date, and hence cannot accept installation of Mac OS X from a CD/DVD -- specifically ...

UTM is an emulator for virtualizing other operating systems. Here's how to use it to run Apple's Mac OS 9 on a Mac running on Apple Silicon. UTM is an OS emulator that lets you virtualize and run a ...