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18 Janvier 2021
There are mainly two reasons why you want to restore your Mac to factory settings and erase everything.
You want to erase your MacBook Pro/Air, MacBook, iMac to sell or give away the Mac.
Your Mac is running slow or having other problems so that you want to delete everything on Mac to start over.
Secure file removal Mac business users removing sensitive, confidential, proprietary or otherwise protected information requiring secure deletion can leverage Mac's native secure removal feature. Mar 21, 2017 To wipe your mechanical drive, open Disk Utility, which you'll find in Applications Utilities. Connect the drive you want to securely delete, then click it in the sidebar. Make sure you click the drive you want to securely delete: you do not want to erase some other hard drive by mistake! When you're ready, click the 'Erase' button. Jul 12, 2018 The Secure Erase Free Space feature in Disk Utility on your Mac added a layer of privacy and security to file deletion. The feature allowed you to overwrite the free space on a drive to prevent.
It is not difficult to erase everything on a Mac and reformat the MacBook or iMac. But if you want to reset MacBook Pro/Air, iMac without losing data, or securely and completely wipe a Mac, there are a couple of things you should do. Just follow this guide to complete all the steps that are needed to securely and completely erase everything on Mac. Your Mac will be restored to factory settings after that.
I believe that there must be some important files on your Mac. Therefore, it is a must to back up your files before erasing your MacBook or iMac. There are mutiple options to back up your Mac:
Move everything that are important to you to an external hard drive. It is time-consuming but feasible if you have limited documents, photos, videos, etc. that need to be backed up before erasing Mac.
Back up your files on Mac to a cloud storage, such as iCloud. Before doing that, make sure your iCloud account have enough free space. How to install forge 1 14 4 on mac.
Make a copy of your Mac data to an external hard drive with a backup program, such as Time Machine, Apple's built-in backup tool for Mac. Learn about the steps to back up a Mac: How to Backup Your Mac with or without Time Machine.
You can wipe a Mac without losing data by using one of the backup methods mentioned above. And to reduce the size of your Mac's backup and incease the backup speed, it is recommended to clean useless junk files on your Mac before a Time Machine or iCloud backup. FonePaw MacMaster can easily delete caches, logs, borwsing history, duplicate files and photos, large files, useless apps and more from your Mac.
Download
Download and run FonePaw MacMaster on your Mac.
Select the file type you want to clean, such as system junks, duplicate photos. Click Scan.
Click Clean to remove the junks you don't need.
Go ahead to back up your Mac. The backup will be finished more quickly, taking less space of your external hard drive or iCloud account.
Do you know that files on Mac are actually recoverable after factory reset? That's right. Even though you have reformatted your Mac and erased everything on Mac, it is still possible to recover the erased files on the Mac with a professional data recovery program such as FonePaw Data Recovery. If you have confidential files on your Mac and don't want to take the risk that somebody may find the files from the reformatted Mac after performing data recovery, you can use Eraser on FonePaw MacMasterto securely delete confidential files on your Mac before factory reset. The Eraser can erase the trace of a file on the hard drive and make it unrecoverable.
Install FonePaw MacMaster on your Mac.
Click Eraser and select the files you want to destroy.
Click Erase to make it unrecoverable.
FileVault encryption is an Apple built-in feature that is designed to encrypt your hard drive and files on the hard drive. It is recommended to turn off FileVault before reset and clean install macOS system. Here are the stpes to disable FileVault encryption.
Open System Preferences > Security & Privacy.
On the Security & Privacy window, click the FileVault tab.
Click Lock button and you will need to enter password of the administrator account the unlock FileVault settings.
After entering the password, you are able to click Turn Off FileVault. Click it.
All files on your Mac will be dencrypted after FileVault is off.
You don't want your iTunes or iCloud account to be linking to your MacBook or iMac if you decide to sell it or give it away. You can authorize only 5 computer with your iTunes account so you don't want to lose an allocation to a Mac that you no longer own. So before erasing your MacBook or iMac, you should first deauthorize iTunes and disable iCloud on your Mac.
Deauthorize iTunes on Mac
Open iTunes on Mac.Click Account > Authorizations > Deauthorize This Computer.
You'll need to enter the password of your Apple ID. Then click Deauthorize.
Sign out of iCloud on Mac
Open System Preference > iCloud. Click Sign Out.A window will pop up, asking whether you want to keep a copy of your iCloud data on the Mac.
Deselect all the options and click Continue, which will ensure that your iCloud data won't stay on the Mac. Mac osx on windows machine.
Also, don't forget that your iCloud account can also be used to receive iMessage. So run Messages, click Preferences > Accounts to sign out of iMessage.
After finishing the above steps, you are now offically able to wipe your MacBook, MacBook Pro, MacBook Air or iMac. You need to erase your Mac in recovery mode.
Enter your Mac into recovery mode
Power off your Mac and then reboot it. As it is rebooting, press and hold Command + R (Option + Command + R or Shift + Option + Command + R) until you see the Apple logo.
Generally you can use Command + R combination to enter the Recovery mode. If you need to upgrade you need to the latest macOS compatible with your Mac, use Option + Command + R; If you want to clean install the macOS that came with your Mac, use Shift + Option + Command + R.
Erase everything on your Mac
When you are in recovery mode on Mac, you will see the macOS Utilities menu. Select Disk Utility.
Select the disk to erase. To erase everything on your Mac, you usually should choose the main hard drive named Macintosh HD.
If the Mac is running High Sierra or later, Disk Utility will show all the Macs linked with your Apple ID under Macintosh HD. So be careful not to delete the drive of other Macs.
Click Erase. Then you need to enter name and format of the drive. You can choose either APFS or Mac OS Extended (journaled) to reformat the Mac. APFS is a new file system introduced by Apple since High Sierra, which is more recommendable.Click Erase to begin wiping everything on your Mac.
After deleting everything on your Mac, you can now reinstall macOS. Go back to macOS Utilities menu. Select Reinstall macOS and follow the on-screen instructions to finish.
That's all about how to factory reset your Mac and erase everthing. If you have more question, drop it in the comment section.
Before you hand over your laptop or an old hard drive to a friend or a stranger, you have to be very careful and beware. When you delete a file or data from your drive, it's not really gone. Your system marks that occupied space as free space now and you can recover those deleted files on your Mac. Generally new data overwrite that space making the deleted data harder to find. So you have to make sure that all personal and important are cleaned off. Formatting won't help you in this case. Instead you have to securely wipe the hard drive.This guide will tell you how to securely wipe a hard drive on your Mac.
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Wiping your hard drive data is necessary as it may be recovered by it's new user and that person can use that data to harm you. Autotune program mac. Some things such as identity theft, credit-card fraud, bank fraud, hacking, your auto save passwords, emails, browsing history and personal content can be used to blackmail you or commit crime in your name. So it is advisable to erase your hard drive to reduce the risks.
You can use Disk Utility to securely erase hard drive in mac or an external hard drive. All you have to do is follow the steps given below:
1.Wiping your hard drive will erase everything. So it's better to back-up your data in an external source before wiping your drive.
2.Open the apple menu and restart your computer. Then wait for your mac to restart.
3.After the system restarts press and hold the Command+R keys.
4.Hold the Command+R keys until you see the Apple logo.
5.After that a window named 'OS X Utilities' pops up.
6.Click on the Disc Utility option as shown in the image below and click on continue.
7.Select the hard drive you want to erase from the available drives list in the left column.
8.You have to be very careful at this moment. Make sure you select only hard drives and not partition.
9.Once you have selected your drive, click on ‘Erase' button.
10.After doing so the system will ask you to name the hard drive after erasing it and how you want to format the drive. The default settings are preferable.
11.Then select the ‘Security Option' button.
12.A window will pop up asking you how you want to erase your drive. Fastest way is the default. Adjust the slider and select the option which you want. You can choose from the following options.
(a)Fastest (Least preferred): This option doesn't erase your drive securely and a disc recovery application may be able to recover the files.
(b)Option 2: It erases the information used to use your files and writes over the data two times.
(c)Option 3: It erases the information used to use your files and writes over the data 3 times.
(d)Most secure: It erases the information used to get access to your files and writes over the data 7 times.
As the option 1(fastest) is least secure it is foolish to choose it. Option 4 is most secure but it will take a lot of time. So I suggest you to choose from Option 2 or Option 3 depending how securely you want to wipe it out.
This method works for all hard drive (internal or external). But if you want to erase your startup drive you have to boot your computer from an external source. You can use Diskmaker X to create a bootable external source.
Solid state drives or flash drive stores data differently. So using Disc Utility is a bad choice. It may affect your drive memory cells or affect it's performance. There is a simple way to erase your SSD by using FileVault 2 . In FileVault 2 the full-disk encryption (FDE) option keeps your startup drive encrypted all times. When you boots your system with a FileVault encrypted account, OS X encrypts everything written to disk.
You can erase the File Vault encrypted drive using Disc Utility. But before erasing the system will ask you to unlock the drive. To unlock the drive you need to enter the password for the FileVault enabled account. If successful, disc will be unlocked and erased.
Erasing a File Vault encrypted drive will make the drive data irrecoverable.
If you cannot access the drive then Disc Utility won't help you in this case. Professional data recovery companies may help you in this case. Hard drive platters can be extracted from the drive enclosure and read out using specialized equipment. So smashing or breaking your hard drive is your best option.
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Conclusion
You can use FileVault,Disk Utility and Mac Washing Machine to encrypt and erase your startup or external hard drive.You can always hire a professional service.After wiping your mac hard drive you can wave it goodbye.
These instructions apply only to Mac computers with an Intel processor.
Erasing your Mac permanently deletes all of its files, so make sure that you make a backup of any files that you want to keep. If you're attempting to restore your Mac to factory settings, first learn what to do before you sell, give away, or trade in your Mac.
Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R. You may then be asked to select a user you know the password for. Select the user, then click Next and enter their administrator password.
Your built-in startup disk should be the first item listed in the Disk Utility sidebar. It's named Macintosh HD, unless you changed its name. If you don't see it there, choose Apple menu > Shut Down, then unplug all nonessential devices from your Mac and try again.
If your disk still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you need help, please contact Apple Support.
For more information about using Disk Utility, see the Disk Utility User Guide.
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