The installer will likely even automatically launch after it finishes downloading. Specifically, the 5.3GB installer application, called Install OS X Mavericks.app, will be saved to your main Applications folder ( /Applications) and, if you’re upgrading from Mountain Lion or Lion, added to Launchpad. This direct link), click the Free Upgrade button at the top of the screen, and then click the Install App button that appears.Īfter you provide your Apple ID and password, Mavericks will begin downloading. You simply launch the Mac App Store application, click the OS X Mavericks banner on the store’s main page (or search for Mavericks, or click Meets the requirements, getting Mavericks is easy-for most people (more on that below). Migration Assistant, again part of the full-blown OS X, handles this already, transferring your files across a local network or double-ended cable.Downloading Mavericks You download Mavericks using the Mac App Store app. Neither should you use this method to transfer your files from one Mac to another while upgrading your system. You can't reinstate individual system files or discrete working files - for that you should use Time Machine itself within OS X. Reinstalling in this way is an all-or-nothing option. If your Time Machine vault has been unplugged for the last month, the reinstalled system will have lost any work completed during that time. Only select this option if you know for sure that your Time Machine archive is up-to-date, as it will reinstate your system's last-known condition.
By far the simplest method is to recover your system from a Time Machine archive - Mac OS X Utilities can piece together your complete system by reassembling each element from your incremental backups. Now that we know our boot drive is in good shape, we can set about reinstalling Lion.
You should also verify or repair your disk to eliminate any problems in the structure of the disk's filing system.
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