Like Lion (OS X 10.7) before it, Mountain Lion (OS X 10.8) doesn’t ship on a disc—it’s available only as an installer app downloadable from the Mac App Store ...

Formatting a hard drive along with the install of a new OS is the best option. The vast majority of operating system installations provide a "format" option as part of the installation process.

This guide shows you how to clean install macOS Catalina so that you can leave behind any problems from macOS Mojave and get a fresh start. This can help you speed up an old Mac, get some drive space ...

(Note: This guide is adapted from one I found buried in Google's cache, so I thought Ars might appreciate a more accessible, updated version.)<br><br><b>Introduction</b><br><br>We all know that OS X ...

You can install macOS on a regular PC to create a custom computer called a Hackintosh. To set up a Hackintosh, you need a Mac, a USB drive, and specific tools like ...

Making a bootable macOS Big Sur USB drive is a quick and clean way to install a fresh copy of macOS on your Mac. This hands-on tutorial is valid for both the public and developer beta versions of ...

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 ...

There are a few reasons why you might want to install an old version of macOS or Mac OS X. Perhaps you are relying on software you have discovered doesn’t work properly with the newest version of ...

If you receive an error message indicating that your Mac's firmware is out-of-date, and hence cannot accept installation of Mac OS X from a CD/DVD -- specifically ...