Back Up Your Files! Okay, so you may have a lot of files that you want to get rid of, but you definitely. Option 2: erase hard drive under OS X 10.10 Yosemite. 'Erase Hard Drive' can help you permanently erase a hard drive or device to permanently erase all data on the hard drive or device – all data on the hard drive will be permanently erased. Option 3: erase free disk space in OS X 10.10 Yosemite.
If you use your Mac frequently, then you surely are excited about Yosemite, Apple's latest version of OS X. The new system is not only the largest departure from past versions, but it also brings a new stunning look, both minimal and colorful.
As usual, Yosemite is free for anyone with a Mac that supports it. You can check if your computer qualifies below:
- iMac (Mid-2007 or later)
- MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)
- MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)
- MacBook Air (Late 2008 or later)
- Mac Mini (Early 2009 or later)
- Mac Pro (Early 2008 or later)
- Xserve (Early 2009)
Downloading and performing a quick install is fairly easy as well: simply get Yosemite from the Mac App Store and double-click on it once it is done downloading.
However, it is recommendable to do a clean install instead of a simple upgrade, since a clean install gets rid of all the clutter of past operating systems and ensures Yosemite behaves like new.
That said, performing this type of install requires some extra care and a few additional steps. So let's go through all you have to do in order to perform a clean install the right way.
Ready? Let's get started.
Prior to Installation
Needless to say, if you are going to completely erase your Mac's hard drive in order to install a fresh OS, you need to take a few precautionary measures. So before starting the clean install process, make sure you…
- Have a complete backup of everything in your Mac
- Remember the passwords of all the apps that you frequently work with
- Have all the licenses of apps you bought outside of the Mac App Store
- Export a backup of all your bookmarks and other browser information
Done with that? Great. Now let's move on.
Create a Bootable Yosemite USB Drive
In order to perform a clean install of Yosemite, you will need to have a copy of just the installer on a USB. This is trickier than you think, since the original Yosemite file is a self-contained app that, when used, automatically performs a quick install (not a clean one) and then deletes itself.
This is convenient for most users, but it also makes the original Yosemite installer useless if you want a clean install. So in order to get only the installer file on a bootable USB drive, you have a couple of options.
Important Note: Make sure to download the Yosemite file from the Mac App Store and to plug your USB drive into your Mac before you begin.Use a Dedicated App
Step 1: This is definitely the easiest way to create your bootable Yosemite USB drive. To do it, first download the latest version of DiskMaker and start the app.
Step 2: Click on the Yosemite (10.10) button. The app will then search for the install file (that you should have already downloaded). Once it finds the file, it will prompt you to use it to create your bootable USB. Verify the location of the file and accept.
Step 3: After that, select the kind of USB drive you will use and then click the Erase then create the disk button for DiskMaker to do its magic. The result should be an install USB drive of more than 5GB in size.
Now, if for some reason this method doesn't work for you or you just don't want to use it, then here's the second method, which makes use of the Terminal.
How To Wipe Mac Pro
Important Note: Don't forget to only use the Terminal if you feel comfortable with it, since it is quite advanced and you can mess things up in your Mac if you take the wrong turn.Use the Terminal
https://fosuge.over-blog.com/2021/01/autocad-2019-23-0-45-377.html. Step 1: Open the Terminal on your Mac. Then copy and paste the following code into it:
sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install OS X Yosemite.app --nointeractionOnce you do, make sure your USB drive is plugged into your Mac, then authenticate with your password and press Return to run the command. Waves complete torrent mac.
After a few minutes you should have your Yosemite installation USB drive ready to use.
Clean Install OS X Yosemite
Step 1: With your bootable USB plugged to your Mac, restart it while pressing the Alt key on your keyboard. This will prompt your system to display all the drives available. Select the orange one to start the installation.
Step 2: Next, you will be presented with a window showing the basic OS X utilities. Select the bottom option to open Disk Utility. It is time to erase your Mac's hard drive.
Warning! Make absolutely sure all of the files you want to keep are backed up somewhere else; once you wipe your hard drive, there's no turning back.Step 3: On Disk Utility select your Mac's hard drive as shown in the image below and then click on the Erase tab. Then name your hard drive and make sure it is in the Mac OS Extended (Journaled) format.
Once you double check all of this, click the Erase… button to start formatting your Mac's hard drive.
Step 4: Once this process is finished, exit Disk Utility and now select Install OS X to finally start installing Yosemite.
After several installation screens, the stunningly beautiful new version of OS X will be ready for you to start using.
Just configure the system, get all your favorite apps and info from the web, and you'll be ready to go.
Top Image Credit:Mike Liu
The above article may contain affiliate links which help support Guiding Tech. However, it does not affect our editorial integrity. The content remains unbiased and authentic.Also See#OS X #yosemite
Did You Know
Wipe Macbook Pro 2010
Google Duo was released in 2018.
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Reinstall from macOS Recovery
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. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Command (⌘)-R
Wipe Macbook Pro Yosemite To Factory Settings
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
