Get a huge set of top utilities for troubleshooting external hard drives not mounting on a Mac. Open an External Drive Not Showing on Mac. Why an external disk drive is not showing up There could be a few reasons why a USB flash drive isn’t making an appearance. How to fix an external disk drive that wont show up on a Mac.It runs on Windows, Linux.G DRIVE ® USB Maintenance for Your Drive Initialize Drive for Mac G-DRIVE was factory-formatted for use or ‘initialized’ for Mac OS. Don't know where to start? We are here to help.UNetbootin allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions without burning a CD. Don't panic! You can troubleshoot and fix the external hard drive not showing up Mac issue.
The USB adapter is not working properly. But other factors can make external hard drive invisible on Mac as well.The causes for external hard drives, USB pen drives, and SD cards not showing up on Mac vary from case to case. Namely, they are: Why is the External Hard Drive Not Showing up on Mac?Most of the time, Mac not recognizing external hard drives is because of the hard drive corruption and faulty connections. Then, the external hard drive will show up on Mac again.Now that you have a bootable USB drive, you will still be able to force install macOS High Sierra from the bootable USB drive, no matter how old your Mac is.First of all, let's see why hard drives not working or showing up. This application is located on your hard driveTake it easy and follow our guide to check the connections, macOS settings, and imperatively, the external hard drive itself. First, open the Disk Utility program. ![]() G Force External Hard Drive Portable USB ExternalExternal hard drives can't work if there is no enough power in the USB port. First, make sure your Mac is not in a low power mode. For portable USB external hard drives, make sure the USB port is not wobbly, dusty, loose, or deformed. If the USB port won't work and can't supply with enough power, you can try another USB port.If you are working on MacBook, MacBook Air, and MacBook Pro models, two things to notice. For Desktop external hard drives like Seagate Backup plus and WD Elements Desktop, make sure the external hard drive is externally connected to a power socket. You can do these things to check the power supply. So, if the external hard drive is lack of power, it won't show up on Mac. Try to connect it to another Mac or even a PC. Check if the wire of the external hard drive is broken. Then, you need to check the other parts of connections as well, especially when your external hard drive lights on but is not detected or showing up on Mac. Though an authentic USB Type C adapter is better, it lesses problem if you connect the Thunderbolt portable hard drive for Mac directly to your Mac.Sometimes, the external hard drive like a Seagate hard drive is not recognized by Mac. Is avast aniti vuris for macSo if necessary, you can ask help from specialists to open the external hard drive case and have a check.After checking the connections, you can see if the second hard drive is detected by your Mac. Sometimes, the external drive is not showing up due to a problematic SATA connection. Check the USB port on hard drive enclosure case. Immediately press and hold the Shift key, and then release the Shift key when you see the progress indicator. Restart your Mac (some Mac computers play a startup sound). In this case, you can try to reboot your Mac in Safe Mode, which only runs essential macOS items. Those incompatible programs could be the USB security app, encryption program, or any antivirus software that you installed recently. Step 2: Go to Finder > Preferences > Sidebar and make sure the "External disks" under "Locations" is ticked. Step 1: Go to Finder > Preferences > General tab and select "External disks" to make external hard drives show on the desktop. To make external HDD show up on the desktop and in the Finder of macOS Catalina, Mojave, or earlier, the following steps would be helpful. If you can't see the external hard drive on Mac, you can get Finder to locate the external hard drive. Check if the Mac is Set to Show Connected External DrivesSometimes, the external hard drive is not showing up because your Mac is not set to. If the external hard drive is recognized by macOS in Safe mode, you should start your Mac in normal mode and then uninstall the suspicious programs that you download recently.3. Dolphin emulator mac keyboard controller setupAccess the External Hard Drive by /Volumes/ FolderIf the external hard drive is not showing up on Mac still, where else you can find the hard drive? In fact, you can try your luck by checking the /Volumes/ folder. Step 4: If your external hard drive is showing up in iBoysoft Data Recovery, follow the wizard to recover data and then format external hard drive.If your external hard drive is not showing up in iBoysoft Data Recovery either, send it to an expert for reparation.4. If not, download, install iBoysoft Data Recovery on your Mac and then check if your external hard drive is showing up in iBoysoft Data Recovery. Step 3: Go to Desktop/Finder and check if your external hard drive is showing up. The external hard drive could be showing up in Disk Utility but greyed out. Check Whether the External HDD Can be Found in Disk UtilityTo make sure whether your external hard drive is detected by macOS, you can go to Applications > Utilities > Disk Utility and check if Mac is picking up the external hard drive.Note: If your external fusion drive is not showing up on Mac, you can check if it is recognized as two separate drives by macOS in Disk Utility also. If your external hard drive is listed, access the hard drive and get to your files there directly.5. Then you can see the volumes folder that lists all mounted drives and disk images. Launch Finder and click Go in the top menu bar > Go to folder. Find and select the external hard drive that is not showing up on your Mac.You may see no partition showing up in Disk Utility but the manufacturer's name like WD and Seagate. Expand the View option and choose Show All Devices. But since you can't see and open your hard drive as usual, we need to confirm more information displayed in Disk Utility. So it's crucial to make sure that the file system is not corrupted and it is doing a good job.To check the file system in Disk Utility: simply select the drive you want to check, and then the disk information, including file system and storage capacity, would be displayed at right.You could see one of the 4 possible circumstances:1. In this situation, you're advised to recover important data with iBoysoft Data Recovery for Mac first, and then reformat this hard drive.Step 2: Check if the file system of the external hard drive is recognizableThe file system manages how and where data on a storage disk is stored, accessed and managed. As a result, macOS is unable to recognize the external hard drive. Step 3: Click the First Aid button on the top and then choose Run to confirm this operation.If Mac is unable to recognize the external hard drive still or First Aid failed to repair the external hard drive, the file system or some core data is too corrupted to be repaired by First Aid. Step 2: Choose the grayed out external hard drive from the left sidebar. To repair this corrupted external hard drive, First Aid on your Mac is a great disk repair tool to use. And you are unable to mount this external hard drive on Mac. As a result, the disk information is not displayed correctly. If you don't have any backup and don't want to lose the data, you are advised to recover files from the corrupted external hard drive with iBoysoft Data Recovery for Mac. However, as it was pointed out before, reformatting will clean the external hard drive and erase your data on this drive.
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