The best way to find a malformed drive is to go toĪpple (in the top toolbar menu) > About This Machine > Storage.
HOW TO FORMAT USB DRIVE NOT RECOGNIZED ON MACBOOK PRO PC
If you have a PC or laptop, it's worth connecting and seeing if you can access these files from other devices. It may be that you are trying to connect to content that is only suitable for interacting with Windows devices. Not every SanDisk External Hard Drive is optimized for Mac. Incorrectly Formatted SanDisk External Hard Drive Or press and hold the power button, when the dialog box appears, click "Restart" or press R. Sometimes, if the USB disk fails to boot, the cause is macOS. Try connecting your SanDisk External Hard Drive to another port on your computer. This may be a hardware issue with the Mac. Try connecting the same device with a different cable. Data Cable FailureĪssuming it is properly inserted, without shaking or loosening, the cable may malfunction. If the USB cable or HDMI cable is not connected properly, your SanDisk External Hard Drive will not appear on your desktop. 9 Ways to Fix SanDisk External Hard Drive not Showing up on Mac Check if the SanDisk External Hard Drive is Inserted Correctly Why the SanDisk external hard drive is not showing up? Here you have nine options to quickly fix, and repair SanDisk external hard drive with the "not Showing up and not recognized" error. There are many reasons why your Mac computer cannot recognize the SanDisk external hard drive. If the SanDisk external hard drive is not displayed on your Mac, you will not be able to access the files stored on it and all important files on the SanDisk external hard drive will be lost. However, sometimes your SanDisk external hard drive cannot be recognized by your Mac or the SanDisk external drive cannot be displayed in Disk Utility/Searcher. When you plug in SanDisk external hard drive into your Mac, it will appear on the desktop or in the left column below the device. Overview of SanDisk External Hard Drive not Showing up/not Recognized Error on Mac