Lately though, my mac has been running really slow. So I thought I'd repeat that process and reformat + reinstall. After I chose the safest format option (the one that takes several hours); I tried to install OSX again (via the internet since I have no disks). It didn't work. Oct 24, 2013 In order to install it, first open the Mac App Store on your Mac and look for OS X Mavericks (here is a link just in case). Once you find it, click on Free Upgrade and then on Install App.
If OS X Yosemite came preinstalled on your new Mac, you’ll probably never need this article. In this article, you discover all you need to know to install or reinstall OS X, if you should have to.
If you’re thinking about reinstalling because something has gone wrong with your Mac, know that an OS X reinstallation should be your last resort. If nothing else fixes your Mac, reinstalling OS X could well be your final option before invasive surgery (that is, trundling your Mac to a repair shop).
You don’t want to reinstall OS X if something easier can correct the problem. So if you have to do a reinstallation, realize that this is more or less your last hope (this side of the dreaded screwdriver, anyway).
Reinstalling is a hassle because although you won’t lose the contents of your Home folder, applications you’ve installed, or the stuff in your Documents folder (unless something goes horribly wrong or you have to reformat your hard drive), you might lose the settings for some System Preferences, which means you’ll have to manually reconfigure those panes after you reinstall. And you might have to reinstall drivers for third-party hardware such as mice, keyboards, printers, tablets, and the like. Finally, you might have to reregister or reinstall some of your software.
It’s not the end of the world, but it’s almost always inconvenient. That said, reinstalling OS X almost always corrects all but the most horrifying and malignant of problems. The process in Yosemite is (compared with root-canal work, income taxes, or previous versions of OS X) relatively painless.
How to install (or reinstall) OS X
In theory, you should have to install Yosemite only once, or never if your Mac came with Yosemite preinstalled. And in a perfect world, that would be the case. But you might find occasion to install, reinstall, or use it to upgrade, such as
The following instructions do triple duty: Of course they’re what you do to install OS X for the first time on a Mac or a freshly formatted hard or solid-state disk. But they’re also what you do if something really bad happens to the copy of OS X that you boot your Mac from, or if the version of OS X on your Mac is earlier than 10.10 Yosemite. In other words, these instructions describe the process for installing, reinstalling, or upgrading OS X Yosemite.
If you’ve never had Yosemite on this Mac, the first thing to do is visit the Mac App Store, download Yosemite, and install it. Once you’ve done that, here’s how to install, reinstall, or upgrade Yosemite, step by step:
If you were reinstalling Yosemite on the hard disk that it was originally installed on, or upgrading from Mavericks, you’re done now. Your Mac will reboot, and in a few moments you can begin using your new, freshly installed (and ideally trouble-free) copy of OS X Yosemite.
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If, on the other hand, you’re installing Yosemite on a hard disk for the first time, you still have one last step to complete. After your Mac reboots, the Setup Assistant window appears. You need to work your way through the Setup Assistant’s screens as described below.
Getting set up with the Setup Assistant
Assuming that your installation process goes well and your Mac restarts itself, the next thing you should see (and hear) is a short, colorful movie that ends by transforming into the first Setup Assistant screen (Apple Assistants such as this are like wizards in Windows, only smarter), fetchingly named Welcome.
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To tiptoe through the Setup Assistant, follow these steps:
And that’s all there is to it. You’re done.
If you have a Mac, then you most likely know already that Apple released OS X Mavericks recently. The best part of all? This latest version of OS X is completely free and available right now from the Mac App Store.
Now, installing a new OS always seems like a daunting task, but thanks to it being available digitally, the installation of OS X Mavericks can be as simple or as thorough as you want it to be.
So, if you plan to upgrade to OS X Mavericks, let’s take a look at a few different steps that you should take care of before doing so.
Is Your Mac Compatible?
Surprisingly, instead of being available only for Macs a couple of generations old, OS X Mavericks supports devices all the way from 2007. Here is a list of all the devices supported:
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To see which device you have, go to the Apple menu on the menu bar and select About This Mac.
Then click on the More Info… button and see your Mac’s model on the next window.
Clean Up Your Mac
There is no better time to do some cleaning to your Mac than when installing a new OS. This clean up usually entails getting rid of files you don’t need (which you can find by using a tool like Daisy Disk) and most importantly, by verifying and repairing your Mac’s disk permissions.
Backup Your Mac
This is an essential step when it comes to any upgrade, so it should be even more so when installing a new version of OS X. Check this post to learn how to create a bootable backup of your Mac easily and for free.
Installing OS X Mavericks the Easy Way
One of the greatest things about installing OS X Mavericks is that the Mac App Store makes the process super easy if you are not an advanced user.
In order to install it, first open the Mac App Store on your Mac and look for OS X Mavericks (here is a link just in case). Once you find it, click on Free Upgrade and then on Install App.
After that, authenticate your account by using your Apple ID and then wait for OS X Mavericks to download (it is a pretty hefty file at about 5.29 GB).
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Once your download is ready, click on Continue on the OS X Mavericks install window. Then agree to the terms and conditions, select the main hard drive where the OS will be installed and click on Install.
After a few minutes OS X Mavericks will be installed and your Mac will restart on its own. All left for you to do will be to set up iCloud Keychain (a new feature of this new OS) and you will be all set and ready to enjoy a Mac that will feel almost as fresh as new.
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