Take a look online to make sure the files you're trying to transfer to the Mac are compatible with macOS. macOS will recognize the drive and show its icon on the desktop. Type in a Name for the drive, then select a Format (file system). 1 Format a USB Drive with a Mac Insert a USB drive into your USB port. Select the USB drive from the list on the left. Launch Disk Utility (from Applications > Utilities > Disk Utility). In the Disk Utility app on your Mac, select a volume in the sidebar, then click the Partition button. If your drive shows up on a Mac, but it appears to be empty, it could be a problem with the types of files you're trying to transfer. Formatting Drives on Mac OS 10+ Insert a USB drive into your USB port. From the Mac desktop, open a Terminal window again and run the following commands to make ntfs-3g function: sudo mv /sbin/mountntfs /sbin/mountntfs.original sudo ln -s /usr/local/sbin/mountntfs /sbin/mountntfs Lastly, re-enable System Integrity Protection. Make Sure the Contents of the Drive Work With macOS If it doesn't work anywhere, then you can be certain there's a problem with the drive. Newer Seagate and LaCie branded external drives come preformatted with the exFAT file system, which allows it to be used on both Mac and Windows without. Try using a different drive or a different port instead.Īlternatively, try using your USB drive with a different computer to see if it works with that. If your USB flash drive or external hard drive doesn't show up in Disk Utility, then there is probably a physical problem with the drive or the USB port on your Mac. Click the First Aid button in Disk Utility to fix any issues with the drive, then try to access it in Finder again. If your USB drive is in ExFAT, FAT32, APFS, or Mac OS Extended format then it should work on your Mac. Format Your USB Flash Drive You can only create a bootable installer for macOS on a Mac.

So you'll need to reformat your drive if it uses NTFS format.

Macbook format usb