Important Note: Make sure to download the Yosemite file from the Mac App Store and to plug your USB drive into your Mac before you begin. So in order to get only the installer file on a bootable USB drive, you have a couple of options. This is convenient for most users, but it also makes the original Yosemite installer useless if you want a clean install. This is trickier than you think, since the original Yosemite file is a self-contained app that, when used, automatically performs a quick install (not a clean one) and then deletes itself. In order to perform a clean install of Yosemite, you will need to have a copy of just the installer on a USB. This is a great idea for anybody who heavily relies on their Mac.ĭone with that? Great. Useful Tip: See how you can transfer a bootable backup of your computer to an external hard drive. Export a backup of all your bookmarks and other browser information.Have all the licenses of apps you bought outside of the Mac App Store.Remember the passwords of all the apps that you frequently work with.Have a complete backup of everything in your Mac.So before starting the clean install process, make sure you…
Needless to say, if you are going to completely erase your Mac’s hard drive in order to install a fresh OS, you need to take a few precautionary measures. So let’s go through all you have to do in order to perform a clean install the right way. That said, performing this type of install requires some extra care and a few additional steps. However, it is recommendable to do a clean install instead of a simple upgrade, since a clean install gets rid of all the clutter of past operating systems and ensures Yosemite behaves like new. MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)ĭownloading and performing a quick install is fairly easy as well: simply get Yosemite from the Mac App Store and double-click on it once it is done downloading.MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later).
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