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When the image is downloaded, the OS Utilities window will pop up, giving access to the usual features, such as Restore from Time Machine Backup, Reinstall OS X, Get help online, and Disk Utility. Ensure that the computer is connected to the power adapter.ġ0. Depending on your internet connection, this process may take some time. You will see a progress bar monitoring the status of the download.

#How long should it take to re install mac os sierra download#

After successful authentication to achieve the network connection, the Mac will download a recovery system image from Apple's servers.ĩ. Then press Return on the keyboard or click the checkmark symbol on the screen to continue.Ĩ. You must confirm access to a Wi-Fi network by entering the password.ħ. If you are not using an Ethernet network, click the drop-down menu and select the desired network.Ħ.

Note: If you use a Mac laptop, use the built-in keyboard to access Internet Recovery Mode since keystrokes might not register appropriately on external keyboards.ĥ. Keep holding these keys until the animated globe appears with the message below stating 'Starting Internet Recovery' and 'This may take a while'. Once the system starts booting and you hear the startup chime, hold down the combination of Command, Option (Alt), and R.Ĥ.

Finally, when you are ready to reinstall the operating system, click the Apple logo in the menu bar at the top of the screen and select Restart or Shut Down.ģ. To protect your personal data, create a backup with Time Machine or similar software.Ģ. All personal data and applications that you have manually applied to the hard disk will be erased.ġ.

#How long should it take to re install mac os sierra software#

After a successful reinstallation process, the computer will contain only the default software (which is delivered with macOS). When you are sure that the Mac can access the Internet Recovery mode, another important task is to install the fresh operating system version. Reinstall operating system by using Internet Recovery mode

PPPoE (where there is no router handling the PPPoE connection).

Captive Wi-Fi networks (where you click on the "Agree" button to access the Internet).

Proxies (where specific proxy servers must be configured in network preferences).

Certificate-based authentication / 802.1x.

If your network uses one of the methods listed, change the setting to a compatible configuration (at least for the installation process). All authentication methods listed below are incompatible with macOS installation via Internet Recovery. If you wish to reinstall the Mac operating system, your network must use DHCP and WPA/WPA security methods.

MacBook Air (11-inch and 13-inch, Late 2010).

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MacBook Pro (15-inch and 17-inch, Mid 2010).

If your device is older than the machines listed below, check the Apple firmware updates list here. Apple states that Firmware updates grant access to Internet Recovery mode. Bear in mind that some earlier versions of Apple devices might also use this feature. All compatible computers are listed below. Requirements to access Internet Recovery ModeĮnsure that the Mac meets the minimum requirements to access Internet Recovery mode. Combo Cleaner is owned and operated by Rcs Lt, the parent company of read more.

#How long should it take to re install mac os sierra full version#

You will need to purchase the full version to remove infections and eliminate computer errors. It is recommended to run a free scan with Combo Cleaner - a tool to detect malware and fix computer errors.

Reinstall operating system by using Internet Recovery mode.

Requirements to access the Internet Recovery Mode.

In this article, we walk through the entire Internet Recovery method. Therefore, you are advised to use an Ethernet network rather than Wi-Fi. Note, however, that an unstable Internet connection can lead to the process crashing and no access to the computer. A big advantage of this method is bringing back the computer to full functionality when software is corrupted. If you perform the reinstallation process via the Recovery utility, you will receive the same operating system version that existed before reinstallation. In this article, we describe the second method. You can choose to install the operating system from a startup disk or via Internet Recovery. All modern Mac computers contain two different methods to reinstall the operating system (by 'reinstall', we mean installing a new OS X version). When built-in tools or software-based solutions do not work, the most efficient solution is reinstalling the operating system.

#How long should it take to re install mac os sierra how to#

How to Access and Use the Internet Recovery Mode on Mac Computers?