Disk1s1, the volume you boot from, mounted at /, shown in Disk Utility as Macintosh HD; disk1s2, ‘Preboot’, not mounted, hidden; disk1s3, ‘Recovery’, not mounted, hidden; disk1s4, ‘VM’, mounted at /private/var/vm, hidden; The last 3 are grouped as Other Volumes in Disk Utility. They're required by macOS and shouldn't be removed. Step 1: Recover lost data with iBoysoft Data Recovery for Mac. Download, install and launch iBoysoft Data Recovery for Mac on your Mac. Select the external hard drive that is greyed out in Disk Utility and click Next to scan for data stored on this drive.
You can’t reformat a drive in macOS Disk Utility when the Erase button is grayed out. This might happen for a variety of reasons, all of which keep you from erasing or reformatting the drives connected to your Mac.
If your MacBook’s Disk Utility won’t let you erase drives, follow the steps below to fix it. Hd mp4 mania hollywood.
Contents Destiny ps4 iso download.
- 2 What if the Erase Button in Disk Utility is grayed Out?
- 3 Learn how to reinstall macOS after erasing your Drive
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How to erase or reformat a Drive using Disk Utility
Let’s start with a brief explanation of the correct way to reformat or erase drives using your Mac. Feel free to skip this section if you already know how to do it.
You may want to erase your drive as a quick way to create space for new files. Or you might need to reformat it so it works with different operating systems, like Windows, Linux, or even iPadOS.
When you reformat a drive, it also erases all the data on it. So make sure to back up any important files before erasing or reformatting your drives.
![Disk Utility For Mac Disk Utility For Mac](https://www.howtogeek.com/wp-content/uploads/2017/12/show-all-devices.png)
When you’re ready, here’s how to erase or reformat drives:
- Open Disk Utility from the Utilities folder in your Applications.
- In the sidebar, select the drive you want to erase or reformat.
- Click the Erase button at the top of the window.
- Choose a new name and format for your drive, then click Erase.
- Wait for Disk Utility to erase or reformat your drive, then click Done.
What if the Erase Button in Disk Utility is grayed Out?
You’re probably reading this article because the Erase button was grayed out when you tried to erase or reformat a drive using Disk Utility. Use the steps below to fix it and let us know in the comments which one worked for you.
Step 1. Show All Devices and Erase the Parent Drive
By default, Disk Utility only shows the Volumes on your connected drives, rather than the drives themselves. A Volume is the partition or section of a drive you store data in.
Open Disk Utility and select View > Show All Devices from the menu bar. You should see the device names for each of your drives appear in the sidebar.
Afes software foundation design free download. Select the parent folder for the drive you want to reformat or erase, then click the Erase button again. Take note that when you erase a device, it erases all the Volumes contained within it as well.
Step 2. Run First Aid to Repair Your Drive Before Erasing It
Disk Utility has a First Aid feature that fixes all kinds of issues related to your drives: slow performance, corrupt files, or unexpected behavior. When you run First Aid, it scans the entire disk for errors and lets you know if there are any it can’t repair.
Open Disk Utility and select the drive you want to erase from the sidebar. At the top of the window, click the First Aid button, then agree to Run First Aid.
The length of time First Aid takes to run depends on the size of your drive, how much data is on it, and how many errors need fixing.
Combine this step with the previous one to run First Aid on the parent device for your drive, as well as the individual Volumes.
Step 3. Boot Into Recovery Mode to Erase Your Startup Disk
If you’re trying to reformat or erase the startup disk on your Mac, you need to boot into Recovery Mode first. The startup disk is the main hard drive on your computer: the one that stores macOS and all your data. It’s not usually possible to erase the startup disk because your Mac is using it to run macOS.
Recovery Mode is a special partition on your Mac you can use to restore from a backup, reinstall macOS, get online support, or erase your startup disk.
You should back up your Mac before trying to erase or reformat it.
Disk Utility For Mac Pro Troubleshooting
When you’re ready to boot into Recovery Mode, restart your Mac and hold Cmd + R while it boots up. Keep holding both keys until you see an Apple logo or hear a startup sound.
You should see a macOS Utilities window appear. Select Disk Utility from this window and try erasing or reformatting your drive again.
Mac First Aid
Learn how to reinstall macOS after erasing your Drive
After erasing or reformatting the startup disk—if that was your goal—you need to reinstall macOS before you can use your Mac again. This is because the original macOS installation was on the startup disk you just erased.
Boot into Recovery Mode once more to reinstall macOS or follow our guide to factory reset any Mac. When you reinstall macOS, your Mac behaves as though it’s a brand new machine, with no data on it waiting for you to set it up.
Dan is a freelance writer based in South West England.
He spent two years supervising repairs as a Genius Admin for Apple Retail and uses that knowledge to keep our troubleshooting guides up to date.
Long before that, Dan turned to Apple products from a musical background. Having owned iPods for years, he bought a MacBook to learn sound recording and production. It was using those skills that he gained a first-class Bachelor of Science in Sound Technology.
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Disk Utility User Guide
You can use Disk Utility on your Mac to manage internal disks and external storage devices. Using Disk Utility, you can:
- Format and manage volumes on physical storage devices.
- Create a disk image, a single file you can use to move files from one computer to another or to back up and archive your work.
- Combine multiple hard disks into a RAID set that acts as a single disk. Using multiple hard disks in a RAID set can increase the performance, reliability, and storage capacity of your data storage system, depending on the type of set you choose.
- Check for and repair errors on your disks and volumes.
Disk Utility For Macbook Air
See alsoAdd, delete, or erase APFS volumes in Disk Utility on MacFile system formats available in Disk Utility on MacGet detailed information about a disk in Disk Utility on MacRepair a storage device in Disk Utility on MacErase and reformat a storage device in Disk Utility on Mac