The Basics of Formatting
You can format most SD cards to FAT32, but the process is a little more complicated in Windows than in macOS. The issue is the built-in Windows formatting tool won’t let you format any device using FAT32 if it’s larger than 32GB. You can format larger SD cards on Windows, but only with a third-party tool. The built-in formatting tool on Mac will let you format large SD cards without any third-party apps.
How to Format an SD Card to FAT32 Using Windows
If your SD card is 32GB or smaller, you can format it to FAT32 with the Windows Disk Management utility or command prompt, but the easiest way is to use File Manager. If you have a card with more than 32GB of storage, skip to the next section for instructions on using a third-party tool. Here’s how to format an SD card to FAT32 using Windows File Manager:
How to Format a Large SD Card to FAT32 Using Windows
Windows doesn’t provide you with the option to select FAT32 if your device has more than 32GB of storage. If you want to use this file system with a large SD card, then you need to use a third-party tool. There are a lot of free and paid apps that can accomplish this goal, but the HP USB Disk Storage Format Tool is a free, lightweight option from a reputable source. Here’s how to format an SD card over 32GB to FAT32 in Windows:
How to Format an SD Card to FAT32 on a Mac
You can also format your SD card to FAT32 on a Mac, and you can use the built-in Disk Utility app regardless of the size of the card. This method requires you to choose the MS-DOS (FAT) file system, but it’s the same as the FAT32 system you would select in Windows. Here’s how to format an SD card to FAT32 on a Mac:
Why Can’t Windows Format Large SD Cards in FAT32?
FAT32 is an old file system with limitations new file systems don’t have. FAT32 places a hard limit on how much space a device can have. It also can’t handle large files. Microsoft removed the option to use FAT32 on large storage devices due to these limitations, and it’s generally considered a good idea to use a different file system if possible. The only reason to use FAT32 is if you have a device, like a camera, that can’t use any of the newer options.
