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Jul 02, 2020 Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk. Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk. Jun 16, 2020 Accidentally Erased Hard Drive on Mac. You may use Disk Utility application to perform hard drive partition-related tasks on Mac Operating System, such as to format, repair, erase or create hard drive partitions and end up with an erased hard drive. Moreover, by doing so, crucial data may be deleted by mistake from your Mac. Use Disk Utility to erase the hard drive. This is where the method will change depending on whether or not you have updated to Catalina. In Catalina you first need to erase the Macintosh HD-Data. Mar 21, 2017 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. The erase dialogue will come up.
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
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.
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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.
Mac OS X Snow Leoparad’s Disk Utility has an Erase feature for erasing a disk or volume, completely wiping outthe contents of that existing disk or volume. You can also erase a rewritable CD (CD-RW) or DVD (DVD-RW, DVD+RW, or DVD-RAM) from the Erase pane. To erase, follow these steps:
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1Open the Disk Utility.
Disk Utility is located in the Utilities folder under the Application folder. https://weddingrenew404.weebly.com/mac-catalina-update-download-location.html.
2Click the disk or volume icon that you want to erase from the list on the left side of the screen.
Erasing an entire disk deletes all volumes on the disk and creates a single new, empty volume. Erasing a volume wipes only the contents of that specific volume, leaving all other volumes on the physical disk untouched.
3Click the Erase tab.
The Erase tab displays your Erase options and explains them.
4Click the format that you want to use from the Format pop-up menu.
![Erase Mac Os X Hard Drive Without Disc Erase Mac Os X Hard Drive Without Disc](/uploads/1/3/3/9/133915503/753630935.jpg)
Choose Mac OS Extended (Journaled) from the Format list unless you have a specific reason to use the MS-DOS File System (for compatibility with PCs running Windows) or the UNIX File System (for compatibility with UNIX/Linux machines). Sometimes Disk Utility forces you to choose the Mac OS Extended entry, but the end result is the same.
5In the Name field, type the name for the new, clean volume.
Best of beres hammond download. If you’re erasing an existing volume, the default is the existing name.
6(Optional) Click Security Options and specify the method you want to use.
![Mac Mac](/uploads/1/3/3/9/133915503/433299063.jpg)
Erase Disk Mac
By default, this is set to Don’t Erase Data, so Disk Utility doesn’t actually overwrite any data while formatting; instead, it simply trashes the existing directory, rendering that data unreachable. However, some third-party disk utilities allow recovery of files. You can specify more secure methods of erasing a disk or volume. Unfortunately, these more secure erasure methods can take a horrendous amount of time.
How To Erase Mac Hard Drive Without Disk Utility
After effects cc download mac. It’s okay to use the Don’t Erase Data option unless you want to make sure that nothing can be recovered, or use the Zero Out Data to take a more secure route with the least amount of extra waiting. You can even click Erase Free Space to wipe the supposedly “clean” areas of your drive before you format.
7Click the Erase button.
In the sheet that appears, click Erase to confirm that you do actually want to do the deleterious deed. Cooking fever 2 free download.