Check disk utility

Summary: This post helps to fix the external hard drive greyed out in the Disk Utility problem. If you find the disk icon, the mount, erase, and partition buttons are greyed out for the external disk, apply the proven methods in this post to fix the issue and recover data with iBoysoft Data Recovery for Mac.You plug an external hard drive into your Mac as normal, but the external hard drive is not showing up in Mac Finder or 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.Specifically, you might see one of these in Disk Utility: The external hard drive's icon greyed out in Disk Utility. Disk Utility Partition greyed out for external hard drive. Disk Utility Erase greyed out for external hard drive. Disk Utility Mutton greyed out for external hard drive.Now let's dive into each scenario! Share this post to help others fix the external hard drive greyed out in Disk Utility!How to fix the external hard drive icon greyed out in Disk Utility?One of the most common appearances 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: Mount the external hard drive manuallySometimes, your USB drive greyed out in Disk Utility just because it was not mounted. Thus, you can 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 it doesn't work, reboot your Mac and try again.Solution 2: Update the disk driverAnother practical solution to this issue is to update the necessary drivers. To update an outdated disk driver, you can simply open the Apple Menu > System Settings >General > Software Updates. This will automatically check for updates. If there are any available macOS updates, follow the onscreen guide to update the Mac.After updating the disk driver, you can reboot your Mac, reconnect the external drive to your Mac, and check whether the drive is mounted now.How to fix Disk Utility Mount greyed out for external hard drive?The SSD/HDD/USB flash drive/SD card shows up in gray and won't mount in Disk Utility, even if you have tried to manually mount it. Don't worry, you can check the following solutions and

Readers help support Windows Report. We may get a commission if you buy through our links. Read our disclosure page to find out how can you help Windows Report sustain the editorial team. Read more CHKDSK (or Check Disk command) is a system tool in DOS, OS/2, and Windows Command Prompt that can check the integrity of your hard disk and can fix various file system errors. Sure, you can use a software that checks your hard disk health. To choose the best one, check out our list of HDD health check software for PC users.In this post, you will find out how to run and use the CHKDSK utility tool for related issues in Windows 10.How to run CHDSKFollow these steps to run CHDSK from Command Prompt:chkdsk /f C: When you use this command, Check Disk performs an analysis of the disk and then repairs any errors it finds, provided that the disk isn’t in use. If the disk is in use, Check Disk displays a prompt that asks whether you want to schedule the disk to be checked the next time you restart the system.chkdsk /r C: When you use this option, Check Disk will locate bad sectors and proceed to recovery any readable information.chkdsk /x C: When using this command parameter, Check Disk will force the dismount of the volume you’re about to work on before the utility begins the scan.Fix CHKDSK issues in Windows 10The Check Disk Utility or Chkdsk.exe is used for detecting and fixing errors in your hard disk and the file system. But it also can cause some problems. As users reported, here are some of the errors that occurred and the solutions to help you fix them:[FIX] Windows 10 chkdsk got stuck[FIX] Can’t run Command Prompt as administrator on Windows 10[FIX] Chkdsk.Exe

Will repair it.Note that you can can’t use First Aid to fix your Start Up drive while it is running the operating system. We’ll run through how to do that next. Here’s how to run First Aid on your Mac or on an external drive to check if there is a problem with the disk:Open Disk Utility.Select your device that you are having problems with from the sidebar. Click on Show All Devices (in the dropdown above View) if you don’t see it. Click on First Aid.Disk Utility will check the volume for errors and repair it if necessary. Click on Run. While Disk Utility checks the volume you won’t be able to use your Mac – beware that it could take a long time. If it finds a problem with the disk, Disk Utility will attempt to repair it.FoundryIf Disk Utility is unable to repair the drive, or it believes that the disk is about to fail it will warn you. Should this be the case you should back up your data before it’s too late. Read this article on backing up your Mac. You may also find this useful: How to recover and delete data from a failed hard drive, SSD or external drive.If Disk Utility reports that the disk is OK that means there isn’t a problem with the disk.How to repair your boot disk/startup disk with Disk UtilityYou can run First Aid on your startup drive following the steps above, but if Disk Utility finds any

See if they can solve your problem.Solution 1: Repair this external hard drive with First AidIn some cases, a disk is unmountable and greyed out in Disk Utility because some minor disk errors are stopping your Mac from reading this drive. Fortunately, there is a built-in utility on your Mac called First Aid that can check and repair such minor file system errors.Go to Utilities, find Disk Utility, and run this program.Click Show All Devices > View option and select this external hard drive in the left sidebar.Click First Aid in the top menu of Disk Utility.Click Run to check and repair errors in this drive.Solution 2: Reformat this external hard driveSuppose First Aid failed on the external hard drive, and you still can't mount the USB drive. Disk Utility Mount greyed out could caused by its seriously corrupted file system. Reformatting can fix the file system corruption, but it also erases all data on it.Therefore, if you haven't backed up data before or this external hard drive is used as a Time Machine backup drive, the safe choice is to recover lost data first with reliable data recovery software, like iBoysoft Data Recovery for Mac. If data loss is not a hassle, you can skip reformatting.iBoysoft Data Recovery for Mac is a professional 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 Mac OS X 10.11 and later versions and works fine on M1/M2/M3/M4 and Intel-based Macs.Step 1: Recover data from the greyed-out external hard drive with iBoysoft Data Recovery for Mac1. Free 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 Search for Lost Data to scan for data stored on this drive. 3. Once the scanning is done, you can open the Complete result on the [file system] folder to check the recoverable files. 4. Select a file and tap Preview to view the contents. 5. Check the box next to the wanted file and click Recover to save the file to another healthy storage device. Step 2: Reformat this external hard drive with Disk Utility• How to format external hard drives on Mac?If this method works to fix the greyed-out external hard drive in Disk Utility, share it with more people!How to fix Disk Utility Partition greyed out for external hard drive?An external hard drive may be greyed out in Disk Utility, so you