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How to reformat mac os x without disc

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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?

How to reinstall macOS, even without Recovery Mode - gofeqysyjiva.tk

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. This happened ever time i tried to turn it back on again.


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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.

Step-by-step Guide to Reset Mac to Factory Settings

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.

Step One: Boot From Recovery Mode, or an Installer

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?

Restore Mac to Factory Settings Without Disc - MacBook Pro, Air, iMac, Retina Display, Mini

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. If you never installed macOS Sierra This combination makes sure that the installation isn't associated with your Apple ID, which is important if you're selling or giving away your Mac. Shift-Option-Command-R isn't available.


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  6. Step Two: Securely Wipe Your Hard Drive (Optional).
  7. How to reinstall macOS, even without Recovery Mode.
  8. Learn more How to upgrade to the latest Mac operating system How to create a bootable installer for macOS. Yes No. Character limit: Maximum character limit is Start a Discussion in Apple Support Communities. Now move the dial up, to randomly write data over your entire drive. If you opted to wipe your drive securely, this might take a while—30 minutes to an hour is not unreasonable for one pass. If you choose three or five passes, you might want to leave this running overnight. With your information wipe complete, you are now ready to reinstall macOS.

    The installation process will begin. Choose the Macintosh HD you named earlier. This might take a while. Eventually your Mac will restart and ask you to create an account.