How to reinstall mac os x on macbook without disc

We install a lot of applications, updates, and maybe even do some poking about the system operating software using Terminal or third-party apps. This is real and expected use. And start your next day with a clean OS slate. And the new owner starts off with a fresh start—no clutter remaining from all your previous applications, preferences, etc. So be nice to yourself and the new owner by removing and securing your data through a factory reset on your Mac!

And never, ever forget to backup your data first through Time Machine or your backup method of choice, before performing ANY of the steps to reset your operating system. For most of her professional life, Amanda Elizabeth Liz for short trained all sorts of folks on how to use media as a tool to tell their own unique stories. She knows a thing or two about teaching others and creating how-to guides! Elizabeth received her Master of Fine Arts degree in media making from Temple University, where she also taught undergrads as an adjunct faculty member in their department of Film and Media Arts.

This site uses Akismet to reduce spam. Learn how your comment data is processed. Hi, a quick question about this process. If you reset your Mac back to factory status, the only apps it downloads are what came installed on it when shipped from the factory—so it would not include Final Cut or Logic Pro. Otherwise thanks for nice article on factory reset and sharing some experiences of how others handle situations. Just a thank you for the clear and concise instructions!

My MacBook Air was so slow after crashing and thought it would be unable to support my needs. This worked like a charm!


  1. How to Reset a MacBook or Any Mac Computer | Laptop Mag.
  2. How to reinstall macOS if macOS Recovery is unavailable | Macworld.
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That might have been my timing, though. The second time, by the time the startup beep sounded, I had the buttons compressed. Unfortunately, these instructions do not work if you buy a MacBook Pro at a yard sale and it is missing the hard drive. Close your MacBook and turn it over. The serial number and model information should be visible on the back side of the computer, near all the regulatory information. Then, purchase the disks for that version for older Mac OS X versions, try amazon, the Apple Store ionline shop, ebay or similar.

Have you tried starting up in Internet Recovery Mode? You need a reliable and fast internet connection to do this. Beeping is often indicative of corrupted RAM. You may be able to isolate the problem by paying attention to how many beeps you hear when starting up.


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  4. Step One: Boot From Recovery Mode, or an Installer.
  5. Step-by-step Guide to Reset Mac to Factory Settings.

If the issue continues, contact Apple Support. This applies to Mac computers from before Newer computers automatically recover from a corrupted ROM; when this occurs, a progress bar appears on the screen during ROM recovery mode. When recovery is complete, your Mac restarts. Another thing to try is starting up in Safe Mode vs. Recovery to check for any errors. To start-up in Safe Mode, press the Shift key when restarting or powering up. Power off your Mac and then turn it back on, immediately pressing and holding the D key on your keyboard.

Keep holding until you see a screen asking you to choose your language. If any issues are found, Apple Diagnostics suggests solutions and provides reference codes write these down in case you need to provide that information. I bought a use i mac air pro for dallor for school i spend my last on it they never give a password. Feel so dumb when i turn it on it gose to a lock pad. And sometime it shows the apple and a bar it goes halfway then go black. I hope someone could help please please please.

Guide | How to Factory Reset MacBook/iMac Without Losing Data – EaseUS

Sadie, Q1 This Apple article shows you the steps as well. Please check it out. Once you have confirmed, then the next step is to signout of your iCloud account from your MacBook. A dialog asks whether you want to keep a copy of your iCloud data on the Mac.

Try again later. Aubrey, Not sure what is causing the issue on your side. Check this Apple article and see if it helps. My problem is bad, fwd I had install win 7 on my Mac air and after by the wrong way I had install ing dragon boot manager, always when I went to open my Mac air the boot manager rising and not possible bassing g g to windows 7 system.

Requirements for reinstalling macOS in Recovery Mode

I ask how to relates this problem, do you have ideally to reset the Mac air with out backup. Sorry about your issues with your MacBook Air. Another option is to try booting up in StartUp-Manager by pressing the option key when restarting or powering up your MacAir.

Release the Option key when you see the Startup Manager on-screen—it looks like a list of disk icons. Do this each time you want to start up from the device or from a startup disk connected to it. Wiping the hard drive and returning the computer to factory default settings gives you this fresh start, and Apple makes this possible even without reinstallation discs.

You just need an Internet connection to complete the reinstall process. Set the MacBook Pro to restart.

How to Clean Install macOS / OS X Without a USB Drive

Select a Wi-Fi network from the menu in the top right corner of the screen, if required. You're unable to change the partition you boot from. In order to unlock the boot partition to make changes, macOS boots from the recovery partition. In the recovery partition, you're free to make changes and adjustments to your primary boot partition, including completely erase it or reinstall macOS.

To boot into Recovery Mode, restart your Mac.

Compatibility Check

Release the keys when you see the Apple logo, a progress wheel, or a password prompt. If your Mac requires a firmware password, you'll need to enter it before you can successfully boot into recovery mode. This typically happens with Macs administered by an organization with a mobile device management policy.

If you don't know your firmware password and can't get it, Apple may be able to unlock your device for you, so long as you can prove you own it.

Reinstall MacBook Pro OS X version ≤ 10.6.8, restore macbook pro without disc

If your macOS installation is causing problems, you don't have to wipe the disk completely and start over from scratch. In fact, macOS can make an effort to reinstall only the system files, replacing any corrupted or damaged system files and, hopefully, returning your system to a working state. This is the default method for reinstalling macOS. It's also the first method you should try since it's the least destructive. It might not fix your problems, but it's also not a nuclear option.

Follow the on-screen instructions to reinstall macOS.

If you never installed macOS Sierra 10.12.4

Wipe your hard drive and start completely clean with an erase and reinstall. This will permanently delete all the files on your boot drive, so be sure you have a backup before proceeding.