Jun 30, 2019 Mac computers are generally reliable. But as with any computer, sometimes things go wrong. Before you spend big on a new Mac, though, try a factory reset, which wipes your computer and reinstalls.

by Shirly Chen, updated on 2017-02-10 to Mac Data Wipe

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'I have a 1TB external hard drive connected with my macOS 10.12 Sierra computer. Now, it is full of junk files and virus. I was a Windows user and I don’t know to how to format a hard drive under macOS 10.12 Sierra. Can anyone help me?'

There many users ask if they can format a hard drive under macOS 10.12 Sierra. If you also want to a solution for hard drive formatting under macOS 10.12 Sierra, you are at the right place. In this article, I will show easy solutions to format a hard drive or external hard drive for macOS 10.12 Sierra.

Three Solutions to Format a Hard Drive under macOS 10.12 Sierra

If you have known how to format a hard drive under macOS 10.12 Sierra, you still can lean useful information in this article. I will offer three simple solutions to help Mac users to forma hard drive under macOS 10.12 Sierra. Please back up your important files before formatting your hard drive, no matter which solution you will choose. With these solutions, you can easily format a hard drive under macOS 10.12 Sierra. Once the formatting process gets started, your data on the hard drive will be removed.

Here are the three solutions to format a hard drive under macOS 10.12 Sierra.

Solution 1: Format hard drive under macOS 10.12 Sierra with Super Eraser for Mac

Calendar programs for mac os x. If you are going to resell, donate or give away your Mac hard drive/external hard drive, Super Eraser for Mac is your best choice to format the hard drive and permanently destroy all data. With advanced data erasure technology, Super Eraser for Mac can easily format the hard drive under macOS 10.12 Sierra and wipe all existing data/history data, beyond the scope of data recovery.

It means your hard drive will be formatted by Super Eraser for Mac, and all the data on the hard drive will be permanently erased. So please be carefully when you use it to format your hard drive. It is very easy to use. When you run Super Eraser for Mac on your macOS 10.12 Sierra computer, it will list all the hard drives and devices on your Mac. You just need to select the hard drive you want to format and click on 'Wipe Now' button. Then Super Eraser for Mac will help you completely format the selected hard drive and erase all data.

Solution 2: Format hard drive under macOS 10.12 Sierra with Disk Utility

Disk Utility is a built-in app in macOS 10.12 Sierra. You can run it on your Mac, then select the hard drive to format/erase. The formatted data can be recovered by data recovery software.

Solution 3: Format hard drive under macOS 10.12 Sierra with Start Menu for Mac

Start Menu for Mac is a smart menu bar for Mac. It can help you format a hard drive in an easy way. Just click on the format button to format your hard drive under macOS 10.12 Sierra quickly. The formatted data can be recovered by Mac data recovery software.

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Permanently and securely erase data from hard drive or external storage device under Mac OS with certified data erasure methods.

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Jun 08, 2020 • Filed to: Solve Mac Problems • Proven solutions

For many users working on complicated software programs, tampering with the settings of their Mac can get tedious. There are instances after the installation or during the working of an application that the device begins to experience some trouble. While backing up of data beforehand is always advisable, it is not always easy to restore the Operating System.

With a few applications, chances are that you might end up tampering the core settings that include the hardware and software. Therefore, users tend to opt for factory settings that can get them back to square one without having to face much hassle. In this article, we are going to distance various aspects about soliutions: How to restore Mac to factory settings.

Part 1. Why Restore Mac to Factory Settings

The basic reason to restore Mac to factory settings is that over a long period of usage, the Mac gets too many data files and software junk files accumulated. While some of the files are use consistently, there are many files that are rarely or never used. However, the major issues lie in the space that is occupied by these files. This makes the system messy, slow, and often causes other applications to stop working.

When you restore Mac to factory settings, the following events occur:

1. Data, software, applications, and files that have been stored on your device will be deleted.
2. The modifications for Mac settings will be ended.
3. The system will only be left with default apps and software programs.
4. The OS X you have been working will be removed, only to be replaced by a fresh copy of the same software.

Users, after restoring their Mac to factory settings, are free to install the software programs that they wish to use. However, there is also a need to take the data backup before restoration Mac to its factory settings.

Part 2. How to Backup Data Before Restoring Mac to Factory Settings

In the following section, we will discuss the procedure to backup your critical data before you move on to restore your Mac to factory settings.

In the following steps, we will take the backup by using Time Machine and an external hard drive.

1) One needs to have an external hard drive with sufficient storage capacity. Ideally, choose a hard drive with storage twice that of your Mac. We go for this precaution knowing how fast the space gets filled up.

2) The external hard drive must be connected to the Mac. This is usually done through a USB cable, Firewire, or eSATA.

3) It is important to format your external hard drive as that would ensure that the files are properly placed for a Mac in case of retrieval in the future.

4) The next step involves launching the Time Machine application. Fortunately, this comes with the Mac OS X. For the ones who can’t find it, it can be accessed through System Preferences.

5) Please designate your external hard drive as the Backup Disk for your Mac Data when there is a prompt through a dialog box.

6) You then have to turn the Time Machine On. The backup utility will automatically start backing up your Mac. You will need to allot, maybe, an overnight for the backup to take place. This usually depends on the amount of data you carry in your Mac.

7) One can also schedule frequent backups with the Time Machine. Conventionally, the Time Machine would backup your data hourly, unless you have made other customizations. Time Machine helps create incremental backups of the current state of the data stored on your Mac and this helps the user to go back in time and get back any missing file or data.

Part 3. Guide to Restore Mac to Factory Settings

There are a number of ways through which you can restore your Mac to its Factory settings. In the following section, we shall first discuss restoring your Mac from Recovery. This is the simplest method to restore your Mac to its factory settings.

1) Power on your Mac.

2) As you hear the startup sound, hold the Command and R keys on your keyboard.

3) Once the Apple logo appears on your screen, you can release the keys.

4) You can either connect your Mac to the internet using an Ethernet cable, or, when prompted, select the specific WiFi Network.

5) Once the recovery menu appears on your screen, you can opt for the option of installing OS X.

6) You are now required to follow the onscreen prompts and select your destination disk and complete the installation for OS X.

Through these steps, you can reinstall the latest version of OS X that you had previously been using on your Mac. For the ones who are looking to restore Mac to its factory settings using the same version of OS X, they must hold Command-Option-R at startup instead as this starts the Mac from Internet Recovery.

Part 4. How to Recover Lost Data after Factory Settings

Now, the next issue that we all face is to restore our data after we have successfully manager to restore our Mac systems. While users might be confused between quite a few third-party applications that promise to achieve this functionality, there are not many that can get the job done. Therefore, we take this section to discuss Recoverit Data Recovery for Mac specially designed for the Mac Users.

For the ones looking for tedious and complicated methods, we recommend some other Mac data recovery software.

Here are the steps to help you restore your data with Recoverit Data Recovery for Mac:

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Step 1 Launch Recoverit Data Recovery for Mac, go to select a hard disk drive where your data lost. Click 'Start' button to process.

Step 2 Recoverit data recovery will start to scan your hard disk drive, it will take a little time to search your lost data from computer.

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Step 3 After deep scan, you can preview the recovered file and click 'Recover' button to save another safe storage device.

Restoring your Mac to its factory settings is not difficult. What matters is how you manage your data in the entire process. Using Time Machine, you can take a backup. But if you use your data before that due to application bugs, errors, and unforeseen shutdowns, you have the luxury of Recoverit Data Recovery for your device. Download it and recover lost files within 3 steps.

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