How to erase hard drive mac lion

Click the Reinstall OS X option in the menu and proceed to follow the directions. You will need to be connected to the Internet, so make sure you're plugged in via Ethernet, or are connected to a Wi-Fi network. You should now have a fresh copy of Mac OS X installed, and your computer is back to its factory settings.

All without the need for a recovery disc or thumb drive.

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Thank you, a friend asked me to get a new install OS X and this seems easy, but just one question. It's downloading a fresh copy from Apple's servers. Apple OS's are now free, so they're not too concerned about verifying. Thank you for the steps, i was wondering, we need to be connected to the internet as it will download the osx again?


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I'm currently running the new Yosemite. Ugh how frustrating I backed up my files and was already to go and restarted twice and could not get this menu to come up Is this not possible on Snow Leopard? 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.

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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. 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.

How to Reformat Mac OS X Without a Recovery Disc or Drive « Mac Tips :: Gadget Hacks

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. 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.

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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. 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. I have a very weird problem - I messed up with the partions when I installed Bootcamp.

How to Securely Wiping a Hard Drive

Now, how can I reformat and install OS X from the installer placed in the external hard drive? Muhammad Umar Muhammad Umar 1 2 3. From there, you can reinstall Lion. Alternatively, you can use the standard Recovery HD. Both are outlined and documented here: You can erase the drive and reinstall OS X using the recovery system: Start up from the recovery partition by holding command-R. It also erases the hidden recovery and EFI partitions. Reinstall OS X.


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But if you restart the Mac, it will start up in Internet Recovery mode, which means that it downloads a disk image of the recovery system from Apple's servers, and you can then install OS X on the empty drive. If others search for how to do a normal erase and reinstall, erase the main OS X partition like Macintosh HD instead of the whole drive: Lri Lri Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

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