May 14, 2020 The Apple logo should be followed by a Mac OS X Utilities Menu with several different options. Select Disk Utility (it’s a little hard drive with a stethoscope) from the Menu and click Continue. Screenshot via Macworl. Once you enter the Disk Utility, you’ll have to select the drive you want to erase. Jun 01, 2020 macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. All you need is a connection.

Wipe Mac Disk

Oct 19, 2016 Method 2: Wipe Hard Drive No Disc, Wipe Hard Drive without CD. No hard drive manager can wipe hard drive without CD but Macrorit Data Wiper, you can wipe the whole disk including boot partition, primary partition, system partition, when system is running, wipe everything including Wiper itself. Take Disk 2 for example in below screenshot. Aug 16, 2019 Disk Utility allows wiping a Mac drive with 3 tools: Zeroes – Writes single pass of Zeros over the partition/disk; 3 Pass – Writes 2 passes of random data followed by single pass of known data.; 7 Pass – Considered to be ‘Most Secure’, it writes over the data 7 times.; Any secondary partition or an external hard drive can be securely wiped using Disk Utility Erase function. Apr 28, 2016 For example, to perform a secure erase with 35 passes on free space on a drive named “Macintosh HD” you could use the following command string: diskutil secureErase freespace 3 '/Volumes/Macintosh HD'. Hitting return will instantly begin the secure erase of any free space.

Question submitted by a reader of the blog:

Mac os x wipe hard drive without cd release

Mac Wipe Hard Drive And Reinstall Os

Hello Tysa, I have an old Mac machine which runs extremely slow. I’ve just ordered a new Mac from the Apple Store. Now I want to sell my old Mac on eBay. I read that one of the best practices is to erase the hard drive so no one can retrieve any data from it. The thing is how to do this without the system restore CD?

Here’s my reply:

For modern Mac machines, you don’t need to rely on the original system disc to wipe a Mac clean. Plus, Macs shipped after OS X Lion don’t come with CDs any more (see this MacWorld news). So, there is no way you can get one unless your Mac really shows its age.

That said, you can quickly erase your old Mac hard drive with OS X’s Recovery feature, which is built into Apple’s Disk Utility. See this screenshot on my Mac. There is an “Erase” option. Note: it’s grayed out because I can’t erase the main hard drive when I turn on my Mac. You’ll have to shut down your Mac and use the trick below to access Disk Utility without booting the disk.

How to access Disk Utility on startup?

All you have to do is shut down your Mac, press the Start button, and hold Command + R keys (or Option key, depending on the OS X your Mac is with). It’ll come to a screen called “OS X Utilities”, there you’ll find Disk Utility, click it and erase your Mac securely.

This YouTube video made by Shani Jaf nails it step by step

In case you find the above method too complicated or it doesn’t work, another way is to use third-party software.

Macos Wipe Disk

Reminder: using the above methods will permanently remove all data saved on the hard drive, use with caution. Before you proceed, make sure you’ve already backed up all important data to an external hard drive or cloud storage.

Mac Os X Wipe Hard Drive Without Cd