Upgrade mac os lion to mavericks

The Mac App Store app may think you already have the installer and, thus, not offer to let you download it again. This was a common issue with Lion, although much less so with Mountain Lion and Mavericks, but I mention it here just in case.

Keeping the installer on hand

One of these two methods should let you download the installer. Similarly, if you're a developer who previously downloaded the golden master GM of the Mountain Lion installer, the Mac App Store app may claim that Mavericks is already installed on your Mac—and thus not let you download the official release—if the Mac App Store app detects the GM installer on any connected volume.

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• Upgrade from a previous version of OS X.
• Get your Mac ready for Mavericks (OS X ) | Macworld.
• Make a backup.

Again, this happened frequently with the Lion installer, but less so with Mountain Lion and Mavericks. If this happens to you, the solution is either to delete the GM installer after compressing it or copying it to a removable drive if you want to keep it handy or, if possible, to disconnect the drive on which the GM resides.

If you run the installer from its default location in the Applications folder, the installation process deletes the installer, presumably to free up the 5. So if, as explained above, you plan to use the installer on other Macs, if you want to create a bootable installer drive , or if you just want to keep the installer on hand, before installing, you should copy the installer to another drive—or at least move it out of the Applications folder.

Mountain Lion: If you were, you're prompted to enter the password for your Apple ID.

ARCHIVED: How do I install OS X 10.9 (Mavericks)?

Click Agree twice , and setup continues. Once that task is complete, you should be able to get right to work with no further interruptions. Oddly, on one of our Lion-equipped test Macs, we weren't prompted on the first restart to provide our Apple ID; it was only on the second restart that we were prompted. I suspect this was simply a glitch. Snow Leopard: Click Agree twice , and you can start using Mavericks. Empty drive: If you installed Mavericks onto a blank drive, your Mac will automatically restart with that drive as the startup drive.

First you choose a system language and keyboard layout. Next, you choose a Wi-Fi network and provide the network password. If you're connected to an Ethernet network, you skip this step. The setup procedure will then continue much as if you upgraded from Mountain Lion, Lion, or Snow Leopard, respectively.

Open Menu Close Menu Apple. Get connected It takes time to download and install OS X, so make sure that you have a reliable Internet connection. Begin installation After downloading, the installer opens automatically.

How to download OS X 10.9 Mavericks for free

Allow installation to complete Please allow installation to complete without putting your Mac to sleep or closing its lid. Then check for software updates by choosing Software Update from the Apple menu. You can then use El Capitan to upgrade to a later macOS. Published Date: The advantage of a clone backup is that you can get back up and running immediately if something goes wrong—a clone is a complete, bootable copy of your drive. The advantage of a Time Machine backup is that it keeps the most-recent and older versions of your documents.

I personally back up using both methods. To test a Time Machine or other nonbootable backup, try restoring several files—both older ones and newer ones—to make sure you can recover your data should disaster strike.

Snow Leopard users only: Mavericks, like Mountain Lion and Lion before it, uses a different and much-improved approach to encryption, called FileVault 2. Most of these products interact with your drive and the OS at a low level, and an incompatibility with Mavericks could leave you unable to boot your Mac or, worse, unable to access your data at all.

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To do this in Mountain Lion, you open the Mac App Store app and check the Updates screen; any available updates to Mountain Lion and Apple software will appear at the top of the window. Regardless of your version of OS X, you should also check for updated firmware for your particular Mac model. If you take some time to check compatibility before installing OS X The list includes columns for various versions of OS X—be sure to look at the Mavericks column. The list isn't yet anywhere close to being exhaustive, but it will start to fill in quickly as more and more people install and use Mavericks.

This will download and install all available updates to Mac App Store-purchased software at once.

Mavericks adds new productivity features, under-the-hood changes to improve battery life, and new apps. It's a free update that's worth every penny you won't pay for it. Installing Mavericks: What you need to know.