1. Check the Connection

Here, it is important to know that all files in drive will be deleted. Therefore, copy your files in some other system before proceeding. Like Windows, Mac also detects an external drive automatically.

How to Fix USB Device Not Recognized - USB Not Working?

If it doesn't, follow these steps:. Step 1 First of all, look for the external hard drive in the finder window. For this, click on file and then click New Finder Window. Now, look for the drive below remote disk. Step 2 If the external drive is not there, make sure that USB cable is properly plugged in the external hard drive and the port.

Step 3 Sometimes, the drive is connected but not mounted.

Part 2. Restore Data from USB Flash Drive

To mount a drive, open Disk Utility and look for the drive in the list. If it is there, check below it. Now click on mounting button to mount it. Open a finder window to see if the drive is mounted or not. Step 4 If you still cannot find it in the finder, it might not be getting enough power. Single USB ports can provide only 5 V. This will supply the power required by the external hard drive. These steps for fixing an external hard drive not recognized on windows and Mac are suitable for external hard drives of all capacities and manufacturers.

However, if still the issue is not resolved, you can avail professional help. While the external hard drive got damaged and did not detected on computer, after you fixing the problem, you should your data back. We will introduce the best external hard drive data recovery help you retrieve data back. Recoverit Data Recovery Software is the powerful data recovery program, it can help you recover data from external hard drive in easily and effectively. Recoverit Data Recovery is the best external hard drive recovery program, it can easily and effectively to help you recover lost or accidentally deleted files from hard disk drive, or other external storage device: USB drive, flash drive, SD card.

Download and install Recoverit Data Recovery on your computer. Launch Recoverit Data Recovery and follow the next steps to perform external hard drive data recovery on Windows computer, if you are a Mac user, you can download Recoverit Data Recovery for Mac to go on.

Product FAQs

Step 1. Connect your external hard drive to the computer, select it while the disk detected on the program. Step 2. The external hard drive recovery software will start scanning the device to searching the lost files. Step 3. Select your files and click "Recover" button to restore back. When the external hard drive got damaged, you can try to fix it with the solution which mentioned above. Also, get your data back with Recoverit Data Recovery in simple steps.

Download and try it for now.

How to fix USB ports that are not working on Mac

If you go to recover data from external hard drive on Mac , you will need the guide to set the application allow working on the Mac computer. Therefore, if you need to restore lost data from the system disk under macOS How to disable "System Integrity protection"? Please follow the steps below. Step 2 When the " OS X Utilities " screen appears, pull down the " Utilities " menu at the top of the screen instead, and choose " Terminal ".

Step 3 In the " Terminal " window, type in " csrutil disable " and press " Enter " then restart your Mac. Theodomentis Lucia. Part 1. Recoverit External Hard Drive Recovery Software Recoverit Data Recovery is the best external hard drive recovery program, it can easily and effectively to help you recover lost or accidentally deleted files from hard disk drive, or other external storage device: USB drive, flash drive, SD card.

Recover Seagate data easily. Drive damaged? Recover data Recover Toshiba drive data.

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

As flawless as a Mac can be, it is not completely immune to issues and sometimes the USB ports on the Mac can stop working inexplicably. You know you didn't do anything to cause the problem, but all of a sudden all your USB ports not working on Mac. This issue can be frustrating. But before you think that the problem is the Mac, consider that sometimes USB devices can fail.

Part 2: Fix USB flash drive not recognizing or working on macOS High Sierra/Mojave problem

Like we mentioned above, it is likely that the Mac is not the problem at all but the USB itself is failing to connect to the Mac. To check if this is a connection issue and that the USB you are using is damaged or not, try connecting a different USB device to the Mac to see if it's recognized.

You may also want to check the USB ports on the Mac to make sure there isn't any debris or dust lodged in it.


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If there are, use a soft cloth to clean out the dust or a toothpick to remove any debris. This problem can also be caused by a software issue. In this case, you may want to restart the Mac to eliminate any software issues that could be causing problems. Follow these simple steps to restart the Mac;. Just to make sure that it is not a hardware problem, you may want to check that the USB port on the Mac is working fine. Dust and debris can be easily removed like we mentioned in the first solution above, and you can also try using different USB devices to see if they are the problem.

The process is slightly different for different Mac models. An update of the software on your Mac is also another way you can fix problems with USB connectivity. Follow these simple steps to update your Mac;. Most software problems on Mac often result in data loss.

If you have suffered data loss for one reason or another, you may need a reliable data recovery program.