How to erase mac hard disk
Also think of photos, videos, chats and again email contents that may include sensitive and personal content that can be used to blackmail you or destroy your reputation. Of course, you can keep every hard drive and flash drive you've ever owned to reduce the chances of the above happening, but after a while this method starts taking up a lot of space.
So the next best thing is to securely erase them.
How to wipe MacBook Pro without losing data
Even though all new Macs these days come with Flash storage which I'll cover later , there are still plenty of hard drives around and in use today. Here's how:. Which Security Option should you choose? From the available options that Disk Utility provides, Security Option 1 is, of course, the least secure. Someone will be able to recover your data without much effort. Security Option 4 is the most secure, but it is also widely believed to be a waste of time and electricity.
Personally, I always go with option 2, but if you want to feel more confident your data is securely erased, or if you must comply with company rules, use option 3 or 4. This works for any hard drive, internal or external. Just be aware that if you want to properly erase the hard drive that is also your startup drive, you will have to start your Mac from an external media first.
An external hard drive or thumb drive will do.
Moving to a new Mac?
For help creating a bootable external drive, have a look at Apple's page here , or use a popular tool such as DiskMaker X. As you can imagine, having an external bootable drive or installer drive can come in handy. Some people say that the standard erasing of an SSD makes data recovery hard enough for it to be "secure. Technology such as wear leveling , which tries to ensure each memory block on an SSD is used the same amount of times, can really mess with a secure erase.
How to restore your Mac to factory settings
By using FileVault to encrypt the drive startup drive and Disk Utility to encrypt external drives, all the data on the drive will be garbled, unless someone has the encryption key your password. Now, when it comes time to part with your drive, all you have to do is a basic erase in Disk Utility. This will delete your encryption key, leaving nothing but garbled data on the drive. Without a way to decrypt the garble, even if all of it is recovered, it will be useless. Of course, you can apply this to hard drives as well, but as those have actual secure erase options available, it's better to use those.
If you are unable to mount the drive, whether it's a hard drive or solid state drive, tools like Disk Utility won't help you. You might think that if you can't access it, neither will someone else.
Unfortunately, this is not the case. Then read on — our guide will help you learn the steps to factory reset MacBook Pro or any other Mac computer just as of it was new.
How to Securely Erase Data from Your Mac and External Drives | The Mac Security Blog
When you reset Mac, all the information you have on your hard drive is wiped off. This is like cloning your hard drive and keeping it for some time. You can manually back up all your files and apps by copying everything to an external drive or iCloud.
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It allows to recover individual files and restore your whole hard drive in the event of a catastrophe. However, before you use Time Machine, make sure to clean up your Mac. Plus, a backup will go faster and more smoothly if your Mac is not cluttered. For a quick cleanup, you can use a utility like CleanMyMac X. It will help you remove large and old files, useless apps, caches, and system junk in two clicks. Note that your first backup may take a long time, depending on how many files you have.
Once your files are backed up, next be sure to disable any services that are associated with your system, including iTunes, iCloud, and iMessage, and deactivate programs on your Mac. Did you know, you can authorize up to 5 computers, which means that you can play your content just on 5 different Macs? FileVault plays an important role on your Mac. It encrypts the data on your hard drive to prevent the unauthorized access to the information on your startup disk. Sign out of iCloud to make sure that any remnants of the cloud data, such as bookmarks, notes, reminders, etc.
Before you restore Mac to factory settings, be sure to sign out of iMessage. To ensure that all information is cleared from the Touch Bar, you need to erase its data.
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Follow these steps:. The following steps will tell you how to restore Mac to factory settings. This is pretty simple. Go to the Apple menu in the top left corner of your screen and choose Restart. When the process is complete, go the Disk Utility menu in the top left corner of your screen and select Quit Disk Utility.