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1. #Mac disk utility partition grayed out how to#
2. #Mac disk utility partition grayed out install#
3. #Mac disk utility partition grayed out password#
4. #Mac disk utility partition grayed out mac#

#Mac disk utility partition grayed out mac#

This will show all the disks, containers, and volumes connected to your Mac in the sidebar on the left.Ĭontainers and volumes appear nested inside each disk in the sidebar. When Disk Utility opens, select View > Show All Devices from the menu bar, if it’s available. If you can’t see it, go to Utilities > Disk Utility from the menu bar. Select your disk and run First Aidįrom the Recovery Mode screen, click to open Disk Utility. If recovery mode doesn't work, there might be a simple fix, but it could also indicate a hardware problem. Keep holding both keys until the macOS Recovery screen appears.Restart your Mac by pressing the Power button, then immediately press and hold Cmd + R.

#Mac disk utility partition grayed out how to#

How to boot into Recovery Mode on an Intel-powered Mac:

#Mac disk utility partition grayed out password#

How to boot into Recovery Mode on an Apple Silicon Mac: Beneath your Mac model name in the window that appears, it should say either Chip (for Apple Silicon models) or Processor (for Intel models). To check this, open the Apple menu in the top-left corner of the screen and select About This Mac. Booting into Recovery Mode allows you to get around this by using a separate partition to run macOS.įirst, you need to find out if your Mac runs on Apple Silicon, like the M1 chip, or an Intel processor, found in older Mac models. This is because you can’t repair the startup disk while your Mac is using it to run macOS. If you need to repair the startup disk on your Mac, you’ll need to boot into Recovery Mode first. Unfortunately, in this case, you’ll need to rely on any pre-existing Mac backups - if you have one. If problems with your disk prevent you from booting up your Mac, you won’t be able to make a backup first. For this reason, we strongly urge you to back up all the data on your Mac before starting. Back up your MacĮven though you’re repairing the disk on your Mac, if the repair fails it can actually leave your disk worse off than before you started. But if your disk is damaged or corrupt in any way, carrying out First Aid on it could take a couple of hours instead. Repairing a healthy disk on your Mac only takes about five minutes. You should also set aside a decent amount of time. Some of these steps involve powering off your Mac, so you might want to print off or load these instructions on a separate device before continuing. But before you jump in, there are a few other steps you need to take to protect yourself from data loss. How to repair disk on your Mac with Disk UtilityĪt its essence, Mac disk repair is as simple as opening the Disk Utility application, selecting a disk, and running First Aid. But all you really need to know is that Disk Utility will scan the entire disk to find and repair these issues, which can affect your Mac’s performance if untreated. These issues could range from corrupt data to formatting issues, to bad directory structures. It's one of the key apps for a faster Mac. You can also use Disk Utility to run First Aid, repairing various problems affecting your Mac’s disk. You can use Disk Utility to partition, restore, or format different disks. What is Disk Utility First Aid?ĭisk Utility comes pre-installed on every Mac, and offers a way to manage and repair the various disks you might use: startup disks, storage volumes, and even external drives.

#Mac disk utility partition grayed out install#

Install MacKeeper to scan your Mac, fixing any existing issues and ruling out other potential problems before trying to repair the disk. Lots of the same symptoms can be caused by other problems, like a lack of storage or a malware infection. It isn’t always easy to diagnose a problem with your Mac disk, be it an HDD or an SSD. In this guide, we’ll show you how to use Disk Utility to run First Aid and repair any disks connected to your Mac. Luckily, Apple includes a handy tool you can use to repair your Mac: Disk Utility. You might need to repair your Mac disk if your computer won’t start up, apps keep freezing, you can’t open certain documents, or the performance has slowed to a halt.