Reformat mac hard drive yosemite

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. 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? 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.

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.

How to format my Mac and reinstall OS X Yosemite?

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: 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?

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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. Loading Installation information It shouldn't be too long.

If that doesn't do the trick, there's another more complicated course of action you could try. Step 1: Back Up Your Files! When erasing the harddrive, which format is ideal? Could there be a problem with the Apple servers or what? 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 any help on this?

How to reinstall macOS from macOS Recovery

I have tried to do step 3 to get to the OS-X utilities screen. I cannot do it. Help needed. Opss almost forgot! Not even the dvd drive is working for the iMac. Happy days indeed. Could it be worst than a bad drive? Also, I don't have a MAC keyboard. I have a Window that works with MAC.

In summery, my computer has no files and I won't install a new OS. Thank you. I have a Mac Mini, but not a Mac keyboard 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?

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

Make Your Mac Feel Like New Again With a Fresh Install of OS X

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.

Follow the instructions that appear on screen, license agreements and all, and choose the hard drive to use in most cases it'll be the only one available. Along the way you can sign in with your Apple credentials to get your apps and iCloud links back again. You're going to be looking at about an hour's worth of reinstalling time but after that you're good to go and ready to enjoy your good-as-new Mac OS X experience.