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You can either use Time Machine to easily backup all of your files to an external hard drive, or you can manually pick and choose files that you want to keep, and transfer them to an external hard drive or USB flash drive. You’ll also want to backup everything before you begin the clean install. Some Macs as far back as 2007 support OS X Mavericks, but for a full list of supported Mac models, check out this list. Preparing for the Clean Installįirst, you’ll want to make sure that OS X Mavericks is supported by your Mac. If this isn’t something you’re comfortable doing yourself, we’d suggest simply upgrading, or finding a friend who can perform a clean install for you. You’ll be moving a lot of files around and dealing with Terminal. Be warned, though: Performing a clean install of OS X requires you to make a bootable install drive using a USB flash drive. With that said, here’s how you can install a fresh copy of OS X Mavericks and start with a clean slate. Essentially, when you do a simple upgrade, the new OS gets installed, and then the installer picks up all the old files and dumps it on top of the newly installed OS, which could easily cause problems. There are just too many problems that could happen when simply just upgrading, and I have so many files that they could get disorganized and cause unnecessary slowdowns on the upgrade. This means that no apps are installed and no files are stored - just the default apps and files that come with OS X Mavericks. A fresh and clean install means your computer’s hard drive is completely erased and OS X Mavericks is installed to factory settings.

While most users will be fine with the easy upgrade process that OS X has, some users prefer to start from scratch with a clean OS install whenever they’re upgrading to a new version. It’s available now in the Mac App Store for free.

It’s the latest OS X version from Apple and it comes with a heap of new features, including improved support for multiple displays, desktop versions of the Maps and iBooks apps, an improved Safari browser and much more. OS X Mavericks is officially out and ready for the public.