![]() ![]() ![]() 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. Memory clean mac 10.6.8 free#įeel 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. When you’re ready, here’s how to erase or reformat drives: So make sure to back up any important files before erasing or reformatting your drives. Open Disk Utility from the Utilities folder in your Applications. What if the Erase Button in Disk Utility is grayed Out? Wait for Disk Utility to erase or reformat your drive, then click Done.ĭisk Utility shows each process it completes in the window.Choose a new name and format for your drive, then click Erase.ĭecide what to name your drive after erasing it.Click the Erase button at the top of the window.ĭisk Utility presents several tools at the top of the window.In the sidebar, select the drive you want to erase or reformat.Spotlight is the quickest way to open Disk Utility. 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. Show All Devices and Erase the Parent Driveīy 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. 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. Run First Aid to Repair Your Drive Before Erasing Itĭisk Utility has a First Aid feature that fixes all kinds of issues related to your drives: slow performance, corrupt files, or unexpected behavior. If you don’t want to proceed with partitioning the disk, click Cancel.Īfter the operation finishes, click Done.Īfter you partition a storage device, an icon for each volume appears in both the Disk Utility sidebar and the Finder sidebar.When you run First Aid, it scans the entire disk for errors and lets you know if there are any it can’t repair. If you want to proceed with partitioning the disk, click Continue. If a dialog appears that indicates it will take a long time to resize the startup volume, read the information in the dialog, then do one of the following: Read the information in the Partition Device dialog, then click Partition. Type a name for the volume in the Name field.įor MS-DOS (FAT) and ExFAT volumes, the maximum length for the volume name is 11 characters.Ĭlick the Format pop-up menu, then choose a file system format.Įnter the size or drag the resize control to increase or decrease the size of the volume. Note: If you click Add Volume instead, you can click the Add button to create an additional APFS volume in the container, or click Cancel to return to the Disk Utility window without making any changes to the storage device. ![]()
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