There are mainly two reasons why you want to restore your Mac to factory settings and erase everything.
Name: Type the name that you want the volume to have after you erase it. Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default. If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Click the Erase button at the top of the Disk Utility window. If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list. If your Mac is using APFS, select APFS from the format list. See Troubleshooting for more information on which format to select. If Scheme is available, select GUID Partition Map. So be careful not to delete the drive of other Macs. 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.
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.
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.
Step 1: Back Up Your Mac Before Factory Reset
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 Is a macbook air good for minecraft. , such as iCloud. Before doing that, make sure your iCloud account have enough free space.
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.
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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.
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Step 2: Completely Delete Private Files
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.
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Step 3: Turn off FileVault
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.
Step 4: Remove iTunes Authorization and iCloud Account
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.
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.
Step 5: Erase MacBook, MacBook Air/Pro, iMac
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.
https://googlam653.weebly.com/timerik-1-3.html. 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.
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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.
Step 6: Reinstall macOS on MacBook, iMac
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.
by Shirly Chen, updated on 2017-11-27 to Mac Data Wipe
APFS (Apple File System) File System is new file system of macOS. Since macOS 10.13 High Sierra, macOS introduces this new file system, instead of old HFS/HFS+. Today, we will show you secure way to permanently delete files or erase hard drive in APFS.
File shredder & data eraser for APFS
Mac data recovery software can easily recover deleted or formatted files in APFS. So, if you want to permanently delete data in APFS, you should prevent data recovery. Data eraser or file shredder for APFS can help you permanently delete files or erase hard drive in APFS. DoYourData Super Eraser for Mac is one of the most powerful data erasure software. It can help in permanently shredding files, erasing hard drive, wiping free disk space in Apple File System.
DoYourData Super Eraser for Mac is secure Mac data eraser for APFS. It use military-level data erasure method to permanently erase data from Apple File System and it will not affect the service life of the hard drive or external device. So, before Mac user resell, donate, give away, abandon or lend their Mac computers, external hard drive, USB flash drives, digital cameras, they can use DoYourData Super Eraser for Mac to permanently erase the data on the hard drive/device. After data erasure, the data will be permanently lost, can't be recovered by data recovery software.
How to use DoYourData Super Eraser for Mac to shred files erase hard drive in APFS? Don't worry, this data eraser for APFS is pretty simple to use. You can easily download and install it on your Mac. Then run it to permanently delete files or erase hard drive in APFS.
1. Permanently delete files in APFS
DoYourData Super Eraser for Mac allows you selectively and permanently to delete files in APFS. Just select the files/folders to the erasure list. Then permanently shred the selected files/folders from APFS file system.
2. Erase hard drive in APFS
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If you want to wipe all data on a hard drive, you can use this option to permanently erase all data on the hard drive. DoYourData Super Eraser for Mac can help you erase hard drive, external hard drive, USB flash drive, memory card in APFS.
3. Wipe Free Disk Space
The deleted or formatted data is stored on the free disk space. DoYourData Super Eraser for Mac can help you wipe the free disk space of hard drive in APFS. Then all the deleted data and formatted data on the hard drive will be permanently removed.
Main features of DoYourData Super Eraser for Mac:
- Permanently delete files in APFS.
- Erase hard drive in APFS.
- Erase deleted/lost files, erase trash bin in APFS.
- Erase inaccessible hard drive in APFS.
Once the data is erased by DoYourData Super Eraser for Mac, the erased data is lost forever. Then your hard drive or device can be able to resold, recycled, or donated to other people. DoYourData Super Eraser for Mac also can erase data in HFS, HFS +. If you want to permanently shred data or erase hard drive in APFS file system, DoYourData Super Eraser for Mac is a good choice.
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