Mac doesnt recognize usb hard drive

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  1. Mac doesn't recognize external hard drive, how to fix?
  2. How Do I Make My Mac Recognize External SSD?
  3. Part 2. Restore Data from USB Flash Drive
  4. macos - OSX Doesn't Recognize My External USB Hard-Drive Sometimes - Super User

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Communities Contact Support. Sign in Sign in Sign in corporate. Browse Search. Ask a question. Notebooks Speciality level out of ten: 0. If anyone out there has a solution to help fix this problem, I would greatly appreciate it.


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Question marked as Apple recommended User profile for user: leroydouglas leroydouglas. Mac OS X Speciality level out of ten: If you are plugged into a hub, try directly connecting to the machine.

Mac doesn't recognize external hard drive, how to fix?

View answer in context. This powerful file recovery algorithm best suits for all latest versions of Mac OS X and supports all storage devices.

General Troubleshooting

In addition to these, this Mac recovery tool wwill restore files lost during formatting, OS reinstallation or parittion errors. It works well on all latest versions of Mac OS including Sierra. Step 3: Select all found volumes and click the Advanced Scan button. Step 4: Recovered files from the USB drive will be listed in two different views. Step 5: Preview restored data and Save required files onto the Mac hard drive.

Mac or Macbook can't detect my external drive. Troubleshooting tips.

All other trademarks acknowledged. Toggle navigation. Download For Windows. Mac Data Recovery Designed for Mac users to provide comprehensive recovery of all lost data. Download For Mac.

How Do I Make My Mac Recognize External SSD?

Best Seller. Make sure you connect the drive to the appropriate operating system and backup any data that you might need before performing a format. The legacy format that is most compatible is FAT32, but it limits you to only 4 GB for max file size.


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  • 1. Connect Your Drive and Check /Volumes/;
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You can read my previous post on how to format an external hard drive using FAT If you need support for bigger files, then you should use the exFAT format. If you connect the drive to the computer and nothing happens, one of several things could be going on: your hard drive might have a problem, the correct software or drivers are not installed on your system, or there is something not working properly with the operating system.

Part 2. Restore Data from USB Flash Drive

Sometimes old drivers can cause a device to malfunction when connected to Windows. You can try fixing this by first going to the command prompt Start and type in CMD and running the following command:. Expand out Portable Devices , right-click on any items that are grayed out and choose Uninstall. Restart your computer and try to connect the hard drive again. In addition to Portable Devices, you can expand out Disk Drives and try to uninstall the device from there if it is not showing up properly in Windows Explorer.

macos - OSX Doesn't Recognize My External USB Hard-Drive Sometimes - Super User

If you are connecting to a USB hub, disconnect that and try to connect the drive directly to the computer. The only way you can really tell if the problem is with the computer or the hard drive at this point is to connect the drive to another computer. If it appears that there is a problem with the drive itself, you can try to download the diagnostic tools from the drive manufacturer. Just about all the major brands like Seagate, Western Digital, Toshiba, etc.