You encounter macOS error messages when attempting to access the drive.

The drive appears grayed-out in Disk Utility.

Files are arbitrarily renamed and cannot be opened.The drive is visible in Finder but you cannot see or access its files and folders.The USB drive is not recognized by the OS and does not appear in Finder.Here are some of the most common indicators of a corrupted USB drive. There are multiple signs that you may have a bad drive that requires you to recover corrupted files from USB on your Mac. In this way, you can determine if the drive is fine but the interface is the problem. If that is not an option, try connecting the device to another computer’s USB port. If your computer has more than one USB port, your first course of action should be to connect a USB device that is having issues to a different port. How do you know if your USB drive has been corrupted? Before looking at the signs that your USB drive is corrupted, let’s look at how to figure out if your USB port is broken on a MacBook or Mac computer. We will also look at things like how to format a corrupted USB drive on a Mac. We are going to show you how to retrieve files from a corrupted USB drive with your Mac. You may need to fix a corrupted USB drive on Mac or fix a broken USB device while saving its data. But like all disk-based storage devices, it can suffer data loss or corruption. Many people use them to share music or photo libraries with friends.

USB drives are great for providing additional storage for your Mac or MacBook.

Mac recovery usb