Restore Mac Os

If you made a Time Machine backup of your Mac, Migration Assistant can use that backup to restore your personal files, including apps and everything in your user account.

If you prefer to restore just a few files or earlier versions of those files, learn how to use Time Machine to restore specific files.

  • Using the drive to reinstall macOS is simple. Just shut down your Mac and plug in the drive. Now boot your Mac while holding the option key, and it will show you the option for reinstalling the operating system. Select the install file and hit enter. My Experience on going through the Process. Apple has made the process seamless.
  • How to erase all data on a Mac, how to factory reset a Mac, and how to reinstall macOS. This works for any Mac Including Macbook, Macbook Air, MacBook Pro, I.

Use Migration Assistant

  1. If you need to reinstall macOS, do that before continuing. For example, if your Mac starts up to a flashing question mark, you need to first reinstall macOS.
  2. Make sure that your Time Machine backup disk is connected to your Mac and turned on.
  3. Open Migration Assistant on your Mac. It's in the Utilities folder of your Applications folder.
    If your Mac starts up to a setup assistant, which asks for details like your country and network, continue to the next step, because the setup assistant includes a migration assistant.
  4. When asked how you want to transfer your information, select the option to transfer from a Mac, Time Machine backup, or startup disk. Then click Continue.
  5. Select your Time Machine backup, then click Continue.
  6. Choose a backup and click Continue.
  7. Select the information to transfer.
    In this example, John Appleseed is a macOS user account. If it has the same name as an account already on your Mac, you're prompted to either rename the old account or replace the one on your Mac. If you rename, the old account will appear as a separate user on your Mac, with a separate home folder and login. If you replace, the old account will delete and then replace the account on your Mac, including everything in its home folder.
  8. Click Continue to start the transfer. Large transfers might need several hours to complete.

Restore your Mac from a backup Use Migration Assistant to transfer files from your Time Machine backup to your Mac. If you made a Time Machine backup of your Mac, Migration Assistant can use that backup to restore your personal files, including apps and everything in your user account.

If you need help, please contact Apple Support.

Learn more

Dec 21, 2020 • Filed to: Solve Mac Problems • Proven solutions

While there are many methods available to the users to recover or reinstall their Mac OS X, in this article, we shall keep our focus on the re-installation that is carried out through the Internet Recovery mode. Critical data can be lost if the OS isn’t recovered, and to overcome that issue, it is important to learn about the reinstallation process of Mac OS X through the Internet Recovery mode. While users are free to make their choice when it comes to opting for a method, the Internet Recovery mode certainly surpasses many others, and in the following article, we shall understand why.

Part 1 When to Go for Mac Internet Recovery for Mac OS X

We shall answer the above question by classifying it into a series of sub-questions. To start with, let us understand what Mac Internet Recovery is.

What is Mac Internet Recovery?

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The recent models of Macs come with the functionality of starting up directly from an Internet-based version of the Mac OS X Recovery. This is particularly helpful in the case where the startup drive encounters an issue, or worse, is missing the OS altogether. The erase or wiping can happen accidentally or due to some software bug and can cause disruption to the user. Through Mac Internet Recovery, users have the option to start their Mac directly through the Apple Servers. When the users use this mode to start their systems, the system performs a quick storage space test along with checking the hard disk for any other hardware bugs.

Why should you use Internet Recovery to reinstall Mac?

Well, this one of the most frequently asked questions amongst the ones operating Mac Systems. Why take all the trouble and opt for Internet Recovery instead of going the conventional way? In the following points, we list the reasons that make reinstallation of Mac through Internet Recovery an intelligent option.

  • One doesn’t need an Operating System disc to perform the reinstallation. This is helpful in cases when you are not carrying the OS disc and want to perform the Mac reinstallation immediately to carry on with your work.
  • There is no need for the user to download separate Operating System files. The Internet Recovery mode will download the installer files, and as a user, you are saved from the trouble of downloading them yourself.
  • The method is less complicated than the conventional method of downloading and installing the Mac OS X. This is helpful for users who aren’t very keen on the technical aspects of the installation process.

What should I do before opting for Internet Recovery?

Here are the points that must be kept in mind before going for the reinstallation of Mac through Internet Recovery mode:

  • For obvious reasons, you must have an internet connection. Users must use their DHCP on the WiFi or any Ethernet Network to install the Mac OS X.
  • For the ones who have purchased the OS X from any Apple Store, they might be prompted to enter an Apple ID or password that was used to purchase the OS X.
  • Users must note that the time taken for the reinstallation of OS X directly depends on the speed of the internet connection being used. Please ensure that the Internet settings are compatible with the Mac OS X Recovery. In the case of incompatible settings, the installation process could be halted midway.

Part 2 How to Reinstall Mac OS X with Internet Recovery Mode

Here are the steps that are to be taken. We start with accessing the recovery mode on your Mac through the following steps:

1) Access recovery mode by holding down the Apple Key and R Key.


2) Users must ensure that they are connected to the internet. We recommend that you use a private network for the same, and avoid any public network due to its configuration. Also, the installation file happens to be large which may take quite a lot of time on any public network.

3) Now, power off your Mac; Apple Shut Down. If you experience the OS not responding, simply press and hold the power button until the Mac switches itself off, and then wait for 30 seconds.

4) Power on your Mac. Hold the Apple Key and R key until you hear the chime noise. Once heard, it will start the OS X in Recovery Mode.

5) The final step has you tapping the ‘Install Mac OS X’ and Continue in the OS X utility section of the screen to start the installation process. After that, there would be on-screen instructions to guide you through the entire process.


Video Tutorial on How to Boot Mac into Recovery Mode

How To Reinstall Mac Os

Part 3 What to Do when Mac Internet Recovery Method Fails

It is possible that you might not be able to reinstall your Mac OS X successfully using the Internet Recovery Mode. While this can be a damper, it doesn’t mean you cannot diagnose the problem behind it.

What if Recoverit Mode is not working? Go there and get solutions for 'Mac will not boot into Recovery mode'.

Why could have the Internet Recovery method failed?

  • Check that your internet connection is working. The Ethernet users must check for proper cable connections while the WiFi users must check the modem.
  • If you are on a public network, chances are that the internet settings might not be compatible with the installation process.
  • If the internet is too slow, the process could have abandoned itself as the file to be downloaded is quite large.
  • Please check that your Mac has a proper power connection. In the case of laptops, the battery should be enough. Losing your power midway can render your device useless.

Measures to be taken to ensure that the Internet Recovery Mode works:

  • As discussed above, we recommend that you opt for a private internet network to carry out the above process. This is because of the large size of the installation file and the hindrances you wish to avoid due to incompatible internet settings and slow internet speed.
  • Please ensure that it is sufficient in your system. Losing power in the process can render the device useless.
  • If the problem persists even when the above two measures have been taken, chances are that your hard disk has been corrupted completely, and therefore, consult a technical consultant for the same.

What if I lose critical data in the process?

For the ones who have lost critical data in the process, you can get reliable data recovery to help you retrieve your lost data back. Recoverit data recovery for Mac support to recover data from any storage device caused by any data loss scenario.

Recoverit - The Best Mac Internet Recovery Software

  • Recover data from all storage devices like MacBook hard drive.
  • Recover 1000+ types and formats of files in different situations.
  • Scan and preview the files before you recover them from MacBook hard drive.

Step 1. Download and install Recoverit data recovery for Mac. To recover lost data on Mac, please select a hard drive disk first where you want the lost data back. Click 'Start' to get started.

Restore Mac Os After Erase

Step 2. A deep scan will immediately begin on your Mac hard drive. The lost or deleted files will be scanned in a while.

Step 3. Once the scan is over, the lost contents would be displayed, and the users can select their lost content and tap on 'Recover' to restore them to their Mac. However, users must be careful not to save the recovered data in its original location due to the risk of being overwritten.

The above information is helpful for anyone who is looking to reinstall their Mac OS X through the Internet Recovery mode. Please note that the Recovery Mode in Apple offers numerous functions to the users and therefore is a great tool to learn more about.

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