- Most external hard drives and USB drives are compatible for use on Mac computers as long as you format the devices for use with Mac OS X. USB drives can be formatted on your Mac using the Disk Utility application.
- May 08, 2020 Make sure the flash drive is fully compatible with Mac. Most flash drives are formatted for use with Windows. The difference between macOS and Windows is that they use different file systems. A Mac uses either Mac OS Extended or AFPS as the file system, while Windows typically uses FAT32.
Formatting a drive will erase all data and partitions on the disk: Connect the hard drive or USB key to the Mac Launch Disk Utility, located in Applications Utilities Locate the drive name from the left hand side of Disk Utility and click on it.
If you're moving it between Mac and Windows, you want to format your flash drive with the FAT32 filesystem. It shouldn't matter whether you format it on your Mac or on a Windows machine.
To do it on the Mac, plug in the flash drive, and open Disk Utility (in your /Applications/Utilities folder). The drive should appear in the list on the left of the DU window.
Select the drive, then click the Erase tab. On that tab, select MS-DOS (FAT) as the volume format, choose a disk name if you want to, then click Erase, and wait.
That said, if your drive just 'didn't work any more' after a while, it may be faulty and it's possible that re-formatting it won't help. (All flash drives do have a finite number of read/write cycles before they don't work reliably any more, too, although it's unlikely you've reached that limit through normal usage.)
To do it on the Mac, plug in the flash drive, and open Disk Utility (in your /Applications/Utilities folder). The drive should appear in the list on the left of the DU window.
Select the drive, then click the Erase tab. On that tab, select MS-DOS (FAT) as the volume format, choose a disk name if you want to, then click Erase, and wait.
That said, if your drive just 'didn't work any more' after a while, it may be faulty and it's possible that re-formatting it won't help. (All flash drives do have a finite number of read/write cycles before they don't work reliably any more, too, although it's unlikely you've reached that limit through normal usage.)
Format Flash Drive To Ntfs On Mac
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