How to reformat mac os x mavericks

Step One: Boot From Recovery Mode, or an Installer

This only works for Lion and higher. If my computer originally came with Snow Leopard but has since been upgraded to Mavericks, will I be able to do the factory reset back to Mavericks? Or will it revert all the way back to Snow Leopard, requiring the discs? Yes, it should work just fine. Lion through El Capitan has the Recovery built-in, and it will reinstall OS X using whatever current version you are on.

If not, you might need to download the firmware to use the Internet Recovery version, but this installs whatever was originally on the computer, so you'd have to update your OS again from the Mac App Store. Everything works fine up until the last step after entering my ID and Password Try again later. My hard drive crashed on my Imac took it to computer repair they installed new hard drive, tried to recover data but could not, when we presented the imac to the apple store they told me i would have to buy back my old hd from them um hello no way, so thats why we went to another place that works on macs, so apple said i had lion on the mac, i couldnt remeber but now i remember i had leopard, the computer place installed lion, well now I cannot get any of my programs installed from the dics i have, like my photo software, etc, any cd i put in stays in for a minute then pops back out.

I turn on the computer, hold the command and r keys for 15 sec.

Step 2: Format Your USB Drive for Unibeast

Oh the joy of reading Service currently not available when it tries to download Mavericks online and all the while having only windows computer working. My late Mac Pro would not boot this AM. Would not let me reinstall OS X. Would any think it is more than a bad internal drive 1? I pulled the drive 1 out, checked all the pins and reinstalled into its slot firmly. It goes to grey screen and first tone There is not the "Reinstall the OS X" in my computer.

Why not? Now what can I do? Please help me. I really need my computer for work. Whenever I turn on my iMac, it would load up to the apple logo and shut down after a few seconds.


  • What is the recovery HD and features does it have?.
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  • Clean Install OS X Mavericks via Bootable Flash Drive – Complete Guide;
  • Basics of Disk Utility in OS X Mavericks.
  • How to Do a Clean Install of OS X Mavericks!

This happened ever time i tried to turn it back on again. I had a bit of hope but nothing ever changed so I decided to erase my disk and was immediately promoted me to restart my computer. When I did, it brought me a a symbol of a folder with a question mark which flashed forever. I held the power button to turn it off and hit it to turn it on again while pressing command and R keys at the same time, it brings me a sign of a spinning globe that loads forever.

When I restart it and immediately insert its installation DVD while pressing key C, it brings me the apple logo and stays like that for ages. This is freaking me out. I have read and tried so may solutions online but nothing has changed. Please help me with another way. If I am currently running a public beta of El Capitan, will this method still work and install the official release of El Capitan?

How to Perform a Clean Install of OS X Mavericks

There's a good chance that it will re-install the public beta version, since it was the most recent OS installed on your Mac. Apple suggests installing from the Mac App Store instead.


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Now I need to format the new HD. Do I need a utility disk? I never created one on this Macbook Pro can I create a utility disk from a newer iMac? Select the disk from the menu, select your language, then choose Disk Utility from the Utility drop-down menu and proceed to reformat it to the right settings. Then you can go back and install the OS. Try again later can anyone help me how to recover all the apps without recovery disc and without back up? I am just wondering. Hey Adriel. So I'm having a slightly different issue.

I've followed your steps, but every time I hit "erase," it brings up a notice saying: "Disk Erase failed with the error: Couldn't unmount disk. I've attached a pic of the error. However, on the left one can clearly see the main " But it allowed me to erase the Macintosh HD option. Why is that? Has my drive been erased nonetheless? Or do I still need to do something else? Is all hope lost? I'm now stuck on the pop up window which says "To download and restore Mac OS X, your computer's eliegiiilty will have to be verified with Apple.

MAC: How To Install OS X After Formatting Your Hard Drive - Factory Reset / Fresh Reinstall OSX

Here's how to go about it in the latest Mac OS X. Restoring your computer back to its original state, whether on Windows or Mac, is a whole lot easier than it used to be—restore partitions original copies of the OS integrated into your laptop , downloadable software and automatic backups mean the process is no longer as hair-pullingly frustrating as it was five or ten years ago. That said, you are wiping everything off your machine: Make sure all your photos, music, apps and so on are backed up somewhere else, because you're going to be starting again from scratch.

Where are your emails? Where's your iTunes library? Check once and then check again to make sure you can get everything back again.

How to Wipe Your Mac and Reinstall macOS from Scratch

Make sure to deauthorize any apps—such as iTunes or Photoshop—that you're going to download afresh, because your newly wiped computer is going to be viewed as a new machine. Dropbox finished syncing? Power cable attached? Pictures of the kids somewhere safe? Then you may proceed. Click on Disk Utility then Continue first of all to get your Mac's hard drive wiped.

Select Erase and then confirm your choice.