To fix this issue, we suggest that you should first check its connection to Mac. When an external hard drive or internal hard drive is not mounting on Mac, it won't be showing up. External Hard Drive Not Mounting on Mac Is Fixable, Go and Make It Work Now Then, the disk is mounting properly on Mac. Once done, close Disk Utility, safely eject the external hard drive and reconnect to Mac. Step 3. Select a macOS-supported file system, like "MS-DOS (FAT)", "Mac OS Extended (Journaled)", etc., and click "Erase". Step 2. Select the external hard drive and click "Erase" at the top menu.
Step 1. Connect external hard disk to Mac and open Disk Utility. But if the disk is with other unknown formats, you can format it to a Mac supported format in Disk Utility with the steps here: If it's NTFS, you can enable NTFS on Mac using EaseUS NTFS for Mac. In some mere cases, it could result in an external disk not mounting on Mac when the disk is with a macOS unsupported file system. Format External Hard Drive in Disk Utility with a Mac-Supported Format Then plug the external hard drive into Mac, you should be able to use the disk by then. Once done, safely eject the external hard drive and restart the Mac computer. Step 3. Select the external hard drive on the left menu, then click "First Aid" on the top menu > "Run".Īnd click "Done" when the repairing process completes. Step 2. Go to Finder > Applications > Utilities > Double-click "Disk Utility". Step 1. Connect the external hard drive to Mac correctly. In this case, you'll need to run First Aid to repair the disk to work again. When you re-mounted the external hard drive to Mac but it turned out the drive is still not accessible, it could be some internal errors. Then, follow Method 3 and Method 4 for help. Notice: If Method 1 and Method 2 don't resolve the issue, run Mac data recovery software to get out of the disk data in advance. Wait for the process to complete, then close Disk Utility and see if you can access the external hard drive on Mac. Step 4. Click your external hard drive on the left pane, and click "Mount" at the top menu. Step 3. Type " disk utility" and press the return key. Step 2. Press "command" key + Space bar to open Spotlight Search. Step 1. Connect your external hard drive into Mac correctly. The process is easy that you can follow to remount your external disk on Mac now: Remount External Disk in Disk Utilityĭisk Utility enables you to mount and unmount external storage devices within a few clicks. Also, to avoid data loss issues, don't run First Aid at first.If the external hard drive contains essential data, don't format it directly.Check if the external hard drive is enabled in Finder Preference:įinder > Preference > See if Enteral disks is enabled.Reconnect external hard drive, switch USB port, cable, or even Mac computer.Format Unsupported External Hard Drive in Disk Utilityĭos and Don'ts Tips Before Fixing Mac Not Mounting External Hard Drive Errorīefore you start, here are some pre-operation tips that we highly suggest you follow first.
#CANNOT FORMAT MAC HARD DRIVE FOR MAC#
Mount and Enable External Hard Drive via EaseUS NTFS for Mac To fix this issue, we connected 4 practical solutions that you can follow the tricks one by one to make sure that Mac can mount an external hard drive and you can make use of the device successfully:
#CANNOT FORMAT MAC HARD DRIVE HOW TO#
Solutions: How to Fix An External Hard Drive Won't Mount Error on Mac
Problematic connection - USB port, cable were broken, unusable, or low power supply.
Causes: Why Is My Mac Not Mounting External Hard DriveĪccordingly, it could be any one of the listed factors that prevened your Mac not mounting external hard dives: What are the causes that block your external hard drive from mounting on a Mac computer? Let's find out the reasons. The external hard drive shows up in Disk Utility but won't mount.Access is denied, the drive becomes not accessible.When your external hard drives, USB flash drives, or even other types of storage devices are not mounting on Mac computers, the devices will come with one or some similar symptoms as listed here. Error: External Hard Drive Not Mounting on Mac (Monterey, Catalina, Big Sur) With this error on your Mac? No worries.įollow us and learn how to get rid of this issue, making external hard drive mounting and working on Mac again without losing any data. This page lists the causes of external hard drive not mounting and shows you how to fix Mac unable to mount external hard drive error successfully. External hard drive not mounting on Mac may result in access denied, disk not showing/not recognized, etc., errors.
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