How to get my external hard drive to work on mac

How to fix an external disk drive that won't show up on a Mac

Try reconnecting your missing drive once it reboots. Some older drives require USB leads with separate power connectors. You can try switching out the cable for another and seeing if that makes a difference. You can confirm whether or not the drive is faulty by trying to connect it to another computer, if you have one.

One potential solution is searching online for your particular brand and model. Manufacturers may have included Mac drivers as a separate download. If you have outstanding updates to apply, try applying them and trying again. In particular, some firmware updates relate specifically to peripherals and devices that connect via USB.

Why Can't I See My External Hard Drive Icon On My Desktop?

Launch the Mac App Store app and head to the Updates tab. Read More before installing major updates or upgrading macOS to the next major version. Even disk first aid or whatever the hell they call it now on the external drives? Read More for details relevant to your machine. It's called Apple Service Diagnostic, and we'll show you how to get it and use it for best results.

Read More. If you have a problem with a particular USB port, you might want to invest in a hub to make the most of your remaining connectivity.


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It might also be time to start thinking about upgrading to another machine, since this could be indicative of bigger problems. Not everyone safely ejects their drives, especially small USB flash drives used primarily for data transfer.


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Larger external hard drives that store a lot of precious data are more worthy of your patience, however. You can eject a drive in several ways:. Here are all your options for adding more storage space to your MacBook. Explore more about: Your Mac should be running as good as new. To prevent an external hard drive not showing up on Mac turning into an all-out disaster, always backup files on your system hard drive and in the cloud. Anytime you use an external drive, unmount the disk properly and store it safely. And finally, use CleanMyMac to uninstall apps and run regular Maintenance on your system to prevent applications conflicting with hard drive performance.

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External Hard Drive not showing up in Mac Disk Utility

English English. MacPaw uses cookies to personalize your experience on our website. In this case, you can partition your drive so that part of it works properly with MacOS, and part of it works properly with Windows, avoiding the issues that can crop up. Unless every file you plan to store on the disk is less than 4GB in size, you may be better off avoiding this method, instead opting for the more storage efficient, reliable, and secure NTFS and Mac OS Extended file systems.

Step 1: On Windows 10, locate Cortana on the bottom left-hand corner of the screen and search Create and format hard disk partitions. Step 2: Typically, when you buy an external hard drive it will be formatted out of the box.

1. Change the Finder settings

If this is the case for you, right-click the drive you want to format and click Initialize Disk. This will prompt a new window, asking you to select a partition style for your disk. Step 3: The volume is the same as a partition. Step 4: After proceeding to the next page, select the file system exFat and keep the allocation unit size at the default.

How to access an external hard drive that's not showing up on Mac

As a standard user, Microsoft advises against changing the allocation unit size. Step 5: On the next page, make sure everything is correct and select Finish. Now repeat this process for Windows. As far as partitioning goes, Macs have it a little bit easier. To start, your first step will be to find Disk Utility. The easiest way to access Disk Utility is by searching for it in Spotlight Search in the upper right-hand corner of the screen.

With Disk Utility open, locate the hard drive you want to partition and select Partition. In the Partition Information category, specify the name and size of each partition. Unlike the older FAT32 format, however, ExFAT allows for the storage of files up to 16 exabytes which equates to about 16 million terabytes!


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