Click here to go to the Official download page at Apple Support.Īfter the download is complete, you must disable the installation screen that appears, to prevent the installation from starting. Click Load more results repeatedly to see older software. This is system software for your older Mac, but you will also find security updates and older versions of QuickTime, Safari, iMovie, Pages, Keynote and the like. Apple itself maintains a list of older software, which you can find via the official Apple Support download page. You need a USB stick with at least 16GB of storage.ĭownload macOS High Sierra (or another version) from the Mac App Store. MacOS clean installation from a USB stickīefore you get started, you will first need to install a version of macOS on a separate USB stick. In doing so, the complete content of your disks is deleted. If you want to start over with a clean Mac, you have to reset the Mac factory settings and perform a clean installation. But you also include all the junk from previous installations. The big advantage is that you do not have to worry about it: you just have to press a button and have some patience.

If you want to install this or all of the following updates, you can simply do so from the Mac App Store. High Sierra is the latest version of macOS (at time of writing). Note: make sure that you always have a backup of all your files and data should something go wrong! You can do this, for example, via a Time Machine or another external hard drive. You make a fresh start on your Mac, without taking all the previous problems and it also comes in handy if you have taken over a Mac from someone else and want to start with a clean Mac. This can come in handy when you restore the Mac factory settings. If a new version of macOS becomes available, there are a lot of people who are considering a clean installation, a so-called clean install.

Mac os high sierra usb installer