Warning: the following steps will delete any info you currently have on the drive. Go to the Applications folder on your Mac’s hard drive, then go to the Utilities folder, and launch Disk Utility.
Insert the flash drive or hard drive you want to format for Windows compatibility. Not only this, we will help you pick the best file system for your usb flash drive that you are planning to use on a Mac. This simple guide will teach you How to Format a Flash Drive on Mac.