To do a clean install of OS X Mavericks, you’ll need a blank USB flash drive that is at least 8GB in size. Make sure to back up your important files, settings and apps before proceeding. Note: A clean install will erase all of the contents on your disk drive. The process is a bit more complicated than it has been in previous years, but it’s still relatively easy to create a bootable copy of OS X Mavericks that you can run from a USB stick or other drive. It’s possible to do a clean install of OS X Mavericks on your Mac - or on a new hard drive, if you’re upgrading or repairing your Mac - but it takes a bit of work.

But sometimes, you might not want to do a regular OS upgrade. This method works for almost all users - it keeps your data and existing programs intact and upgrades your machine to the latest OS. How to Do a Clean Install of OS X MavericksĪs with OS X Lion and OS X Mountain Lion, Apple makes it easy for users to install the upgrade by downloading Mavericks from the App Store and running the installer. Apple says Mavericks includes over 200 new features, including upgrades to the Finder, Calendar, Safari, Maps, and improved support for multiple displays. The new upgrades include a better integration with Apple’s iOS mobile devices and apps - namely iBooks, iWork programs, iCloud keychain passwords. Perhaps the best and most surprising news announced at Apple’s special product release event, is that its latest OS X upgrade, Mavericks, is available for a free download, and users can upgrade from previous OS X versions, starting with version 10.5.(Note: Be sure to back up your Mac before you begin the upgrade process.)

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