Posted by Katrina to Mac Data Recovery on January 18th, 2019
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Hello everyone, after I manually closed my MacBook Pro for 5secs due to an application crash, my computer doesn't seem to be able to boot anymore. It executes the progress bar under the apple icon on the screen and after it completes the process, it shuts down. When I press CMD+R, I can see from Disk Utility the Macintosh HD greyed out. What should I do? How can I back up my system or some files?
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.; 3.
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In general, a Mac with a stable Macintosh HD will boot in as normal, and the Macintosh HD will be available in Disk Utility. Then you are able to access the Operating System and make further operations. However, it's possible that your MacBook Pro, iMac, Mac mini or MacBook Air boots to black screen of death and its Macintosh HD is greyed out in macOS Recovery mode.
If you are suffering from this issue, remain calm – the Macintosh at least doesn't have any hardware error, as your Mac can still recognize it. That means you have chances to repair it and get all lost data back. In this article, you will learn about how to fix Macintosh HD greyed out in Disk Utility. https://heavenlygang.weebly.com/ip-camera-monitoring-software-mac.html.
How to fix Macintosh HD greyed out in Disk Utility?
As your Mac won't boot, all the solutions below are finished in macOS Recovery mode. The first thing is to boot your Mac into macOS Recovery mode: start your Mac and hold down the Command + R keys simultaneously until you see an Apple logo or spinning globe. Then release the keys.
Solution 1: Mount the Macintosh HD
Sometimes, the Macintosh HD greyed out in Disk Utility just because it can't be mounted. In this case, you can try mounting the drive manually. After booting into macOS Recovery mode, select Disk Utility from macOS Utilities and click Continue. Right click the Macintosh HD in Disk Utility and select Mount button.
Solution 2: Repair the Macintosh HD with First Aid
If the Macintosh HD fails to mount manually, you can also check and repair the Macintosh HD with First Aid.
Step 1: Boot into macOS Recovery mode.
Step 2: Select Disk Utility from macOS utilities and click Continue.
Step 3: Select the unmounted Macintosh HD and click First Aid on the top of the Disk Utility window.
Important: back up your data
Sometimes Disk Utility stopped repairing Macintosh HD, you can then try to reformat to fix Macintosh HD not mounted in Disk Utility. But this process will erase all data stored on the drive. If you don't back up important data, please perform data recovery firstly.
While recovering files from a Mac that won't turn on may be difficult, it is not impossible with a professional data recovery software. iBoysoft Data Recovery for Mac is a free Mac hard drive data recovery software that can recover lost data from unmountable Macintosh HDs,recover lost data from failed internal hard drives onmacOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/10.12 and OS X 10.11/10.10/10.9/10.8/10.7.
Method 1: If you have only one Mac computer
If you have only one Mac computer, please directlyrun iBoysoft Data Recovery for Mac in macOS Recovery mode and recover lost data from the unmountable Macintosh HD.
Method 2: If you have two Mac computers
Step 1: Download iBoysoft Data Recovery for Mac on the healthy Mac computer.
Step 2: Install and launch iBoysoft Data Recovery for Mac on this Mac computer.
Step 3: Click iBoysoft Data Recovery on the menu bar and then select 'Create Boot Drive'.
Step 4: Insert a USB drive into this healthy Mac computer.
Step 5: Follow the wizard to create a bootable recovery drive on the USB drive. Software license key finder.
Step 6: When the creation process completes, you can insert the USB drive into the unbootable Mac computer, and then press the Power button and Option key (⌥) to start the Mac up.
Step 7: Select iBoysoft Data Recovery for Mac from the boot options.
Step 8: Follow the wizard to scan for the lost data on the unmounted Macintosh HD.
Step 9: Choose the files you want to get back, and then click Recover button.
Besides, iBoysoft Data Recovery for Mac can recover lost data from formatted drives, recover lost data from unreadable drives, and recover lost data from inaccessible drives, etc. It supports documents, pictures, audios, videos, emails, etc. and different storage devices such as hard drives, external hard drives, USB flash drives, SD cards, etc.
Solution 3: Erase the Macintosh HD and reinstall macOS
After recovering data from the Macintosh HD that's greyed out in Disk Utility, you can follow the following steps to fix this issue.
Step 1: Boot your Mac to macOS Recovery mode and select Disk Utility from the macOS Utilities menu.
Step 2: Select the unmountable Macintosh HD from the side bar.
Step 3: Click Erase from the top.
Step 4: Setup the required information (i.e. Name, Scheme, Format, etc.) to reformat the disk and click Done when finished.
Step 5: Go back to macOS Utilities screen, select Reinstall macOS and follow the wizard. Remove google software update bundle mac.
Still have questions?
Summary: If your external drive is greyed out in Mac's Disk Utility, you will find the best solution to fix this problem in this post. If necessary, you can also download iBoysoft Data Recovery for Mac to recover lost data from your greyed-out external hard drive.
You plug an external hard drive into your Mac as normal, but the external hard drive is not showing up in Mac Finder nor on the desktop this time. So, you launch Disk Utility to check this drive, only to find that the external hard drive is greyed out in Disk Utility. You can calm down first because if you see the external hard drive in Disk Utility with some disk information, your external hard drive at least has no hardware errors. That's to say, you have a great chance to repair it without data loss.
Now, look through the table below and find the best solution to fix this greyed out external hard drive issue on your Mac.
- Table of contents
- 1. Why external hard drives greyed out in Disk Utility?
- 2. How to fix when external hard drives greyed out in Disk Utility?
- 3. How to fix when external drives won't mount on Mac?
- 4. How to fix when Partition external hard drive greyed out in Disk Utility?
- 5. How to fix when Erase hard drive greyed out in Disk Utility?
The symptoms of hard drive dimmed out in Disk Utility are different from case to case. Therefore, let's first take a closer look at the reasons for this issue before you set about repairing your external hard drive that is faded in Disk Utility.
Why external hard drives greyed out in Disk Utility?
Many users are confronted with this annoying issue and are looking for a feasible solution. However, they have no idea exactly why their external hard drives are greyed out in Disk Utility, just like the user from the forum of MacRumors:
'I've been Googling for solutions for the past seven hours. The thing is, I was about to back up and of course, My External Hard Drive in Disk Utility Is Grayed Out!!! My life lives on this disk. I want to also mention that the computer reads the disk. I know this because it appears in Disk Utility, but it's grayed out. Someone helps me.'
Then what could be the cause of this problem?
Some common reasons, including sudden power failure, unsafe ejection, virus attacks could make the disk unrecognizable. What's worse, they may damage the file system or partition table of this drive, resulting in disk corruption. If the file system is corrupted too seriously to be read by the operating system, your external hard drive, for example, WD My Passport will be greyed out in Disk Utility.
After knowing what may make your disk greyed out in Disk Utility, now you can suit the remedy to the case by finding the corresponding solutions in the following part.
How to fix when external hard drives greyed out in Disk Utility?
One of the most common appearances you might see is that the external hard drive shows up in Disk Utility but is greyed out in the left sidebar. What you can do in this situation?
Solution 1:Try to mount the external hard drive manually
Sometimes, your external hard drive is greyed out in Disk Utility just because it was not mounted. Thus, you try to mount this external hard drive in Disk Utility manually. To do this, you can select your external drive and click on the 'Mount' button at the upper menu bar. If theexternal hard drive is not mounting in Mac Disk Utility still, reboot your Mac and try again.
Solution 2:Update the disk driver and extension
Another practical solution to this issue is to update the necessary drivers and extensions. To update an outdated disk driver, you can simply open your App Store and choose the available one to update. Or if you receive some errors like 'System Extension Blocked', it means a disk driver on your Mac is not working due to the lack of an extension, and you can easily enable this extension to be loaded in 'Security and Privacy'. After updating the disk driver or extension, you can reboot your Mac, reconnect the external drive to your Mac, and then remount this drive.
How to fix when external drives won't mount on Mac?
The external hard drive shows up in gray but won't mount in Disk Utility, even you have tried to manually mount it? Don't worry, you can check the following solutions and see if they can solve your problem.
Solution 1:Repair this external hard drive with First Aid
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In some cases, a disk is unmountable and greyed out in Disk Utility because some minor disk errors are stopping your Mac reading this drive. Fortunately, there is a built-in utility on your Mac called First Aid is able to check and repair such minor file system errors.
Step 1: Go to Utilities, find Disk Utility and run this program.
Step 2: Click Show All Devices in View option and select this external hard drive in the left sidebar.
Step 3: Click First Aid in the top menu of Disk Utility.
Step 4: Click Run to check and repair errors in this drive.
Solution 2:Reformat this external hard drive
SupposeFirst Aid failed on the external hard drive and you still can't open it, your drive is greyed out in Disk Utility because the file system of the drive could be seriously corrupted. Reformatting can fix the file system corruption, but it also will erase all data on it. Therefore, if you didn't back up data before or this external hard drive is used as a Time Machine backup drive, the safe choice is to recover lost data firstly with reliable data recovery software, likeiBoysoft Data Recovery for Mac. If data loss is not a hassle for you, you can just skip to reformatting.
iBoysoft Data Recovery for Mac is professional and free Mac data recovery software, which can recover lost data from unmountable/formatted/inaccessible external hard drives. It can recover lost data from APFS, HFS+, HFS, FAT32 and exFAT formatted external hard drives, USB drives, flash drives, SD cards, CF cards, memory cards, etc. This software also can undelete documents, pictures, emails, music, etc. from Trash.
It supports macOS 10.15 (Catalina), macOS 10.14 (Mojave), macOS 10.13 (High Sierra), macOS 10.12 (Sierra) and Mac OS X 10.11 (El Capitan), 10.10 (Yosemite), 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion).
Step 1: Recover lost data with iBoysoft Data Recovery for Mac
- 1. Download, install and launch iBoysoft Data Recovery for Mac on your Mac.
- 2. Select the external hard drive that is greyed out in Disk Utility and click Next to scan for data stored on this drive.
- 3. You will see the scanning results in the left sidebar with three categories: files path, type and time. Please double click these files to preview them to make sure your files are not corrupted.
- 4. Select the files you want to get back and click Recover to recover them from this external hard drive. Remember to save these files to another healthy drive for your sake.
Step 2: Reformat this external hard drive with Disk Utility
- 1. Launch Disk Utility.
- 2. Click the external hard drive that is greyed out in the left sidebar.
- 3. Click Erase and fill in the information that the wizard asked, then click Erase to complete this process.
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How to fix when Partition external drive greyed out in Disk Utility?
It is possible that an external hard drive is greyed out in Disk Utility, so you try to reformat it by re-partitioning it. However, the Partition feature is greyed out as well. How to fix this problem? Well, you have two options to try.
Solution 1:Check if the external hard drive is NTFS formatted
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As you probably know, most external drives would be formatted with Windows NTFS file system by the manufacturer, while NTFS file system is read-only on Mac computers. That's to say, you can't perform any input operation to this disk, including re-partition. So have a check if this external disk is Windows NTFS file system by viewing the disk information directly. If so, you may need an NTFS driver for Mac so that you can rearrange the space of this disk by partitioning it in Disk Utility.
Solution 2:Enable Show All Devices in Disk Utility
What if your external disk is not formatted with NTFS but some other file systems like Mac OS Extend and FAT, how to fix this issue then? Well, it's likely that the Partition option is greyed out in Disk Utility because you select the wrong item. You can't partition a volume (Even though the Partition option is highlighted for APFS volumes). Instead, you should select the disk drive when you want to partition a disk, and the following steps would be helpful.
- 1. Open Disk Utility like you usually do.
- 2. Click the View icon at the upper left, and then choose Show All Devices in the context menu.
- 3. In the left sidebar, you should select the name of the external drive instead of the single volume.
- 4. Then the Partition feature will not be greyed out and you can click it to partition your disk now.
How to fix when Erase hard drive greyed out in Disk Utility?
Another problem you might meet in Disk Utility is that you can erase a disk because the Erase option is greyed out. Usually, it happens when you try to erase an internal drive, which is reasonable because you can't erase the startup disk that you are currently running. Then if you want to install a new OS, or if you need to erase personal data before you donate your Mac, how can you erase a system volume?
Solution:Erase the disk in macOS Recovery mode
- 1. Reboot your Mac and immediately press and hold Command + R to boot your Mac in macOS Recovery mode.
- 2. Then choose Disk Utility in macOS Utilities.
- 3. Select the volume you want to erase and click on Erase as usual.
Note: Be sure you have an up-to-date backup of your important files and data. But if you lost some important data in this process, you can try iBoysoft Data Recovery for Mac to recover your data.
Conclusion
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However, if your external hard drive is greyed out in Disk Utility, and the disk information and the storage capacity is not even showing up correctly, the disk may die from physical damage. If this is the case, you can try your luck by sending it to a disk repair service.
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It will be great if this article has helped you repair the external hard drive that is greyed out in Disk Utility.