Note: Formatting your flash drive will remove all files or folders onthe drive, so make sure you back up your files before formatting yourdrive.
Windows:
Connect the USB flash drive to your computer.
Disk Utility application in MacOS is the best option to format a flash drive on MacOS. You can launch this app in two ways. Step 1: Press Space while holding your command button. A search box will open. Select the USB flash drive in Disk Utility. Click the 'Partition' tab, if you want to use more than one partition in the drive. A drive with two partitions, for example can have one partitioned in ExFAT and another in a Mac OS Extended format, so you can use the same drive on a Mac and a Windows computer. The exFAT format will not give any limitations on the file size that you are going to store on your flash drive and you can still use it on both Windows and Macs that are running in Mac OS X Snow Leopard or later version. For you to be able to format your flash drive into Fat32, here is what you need to do. Fortunately, while formatting your flash drive on a Mac is different than other operating systems it still remains a pretty easy task! If you don't need any help, then here are the quick steps you can follow to formatting your flash drive. If you need some assistance, we walk you through the process, step-by-step down below.
Click “This PC”.
Right-click the flash drive’s icon. It’s beneath the “Devices and drives” heading in the middle of the page.
Click Format. This option is near the middle of the drop-down menu. Doing so opens the Format window.
Click the “File System” box. It’s below the “File System” heading near the top of the page. A drop-down menu will appear with the following options:
NTFS - The default Windows operating system format. If you’re using your drive as a secondary Windows drive, you’ll need to choose this option.
Format A Flash Drive For Mac And Pc

FAT32 - The most widely compatible format. Works with most computers and gaming consoles.
Note: exFAT format USB flash drives do not work with ClonerAlliance products.
Click a format option (FAT32 or NTFS). If you’ve formatted your drive before and you’re positive that it isn’t broken, you can also check the Quick Format box.

Click Start, and then click OK. Doing this will cause Windows to begin formatting your flash drive for you.
Click “OK” when prompted. Your flash drive has successfully been formatted.

Mac:
Connect the USB flash drive to your Mac.
Note: Some Macs don’t have USB ports, so you’ll need to purchase an adapter.
Click “Go”. It’s a menu item in the top-left side of the menu bar.
If you don’t see Go, first click the Finder icon, which resembles a blue face in your Mac’s dock.

Click “Utilities”. This option is in the Go drop-down menu.
Double-click “Disk Utility”. You’ll likely find this option in the middle of the Utilities page.
Click your flash drive’s name. It’s on the far-left side of the Disk Utility window.
Thumb Drive For Macbook Pro
Click the “Erase” tab. This option is at the top of the Disk Utility window.

Click a format option.
Note: exFAT format USB flash drives do not work with ClonerAlliance products.
Format Flash Drive For Time Machine
Click Erase, then click Erase when prompted. This will begin the formatting process. Once the formatting is complete, you’ll see an icon for your flash drive appear on your Mac’s desktop.
