The current Mac operating system—which launched in 2001, 23 years ago, as Mac OS X—has been around longer than the "Classic" OS, which Apple offered for a total of 16 years.

Next, to start Mac OS 9, click the large play button in the UTM window on the right. You'll see Mac OS 9 boot, and you'll be left at the default Finder view, just as if you had restarted a real ...

In order to create a bootable USB to install macOS, you would need access to a Mac computer. There are tools available that help during the process, but it's highly unlikely that things will be ...

So, read on to find out how you can install macOS 15 Sequoia on your Mac. You may like macOS Tahoe 26 announced at WWDC 2025 with a new look and new numbering scheme: these are the best features ...

Before you begin, it is recommended that you perform a backup of your Mac device to iCloud or Time Machine to ensure you don't lose files if things go south. Next, head over to the official macOS ...