FAT32 is widely compatible with older devices, cameras, consoles, and firmware, but it cannot store a single file larger than 4 GB. Windows’ graphical formatter also limits FAT32 creation on larger volumes.
Steps
- Back up the target drive because formatting erases its filesystem.
- Open File Explorer > This PC, right-click the correct removable/small drive, and choose Format.
- If FAT32 appears in File system, select it, choose a volume label, and format after rechecking the drive letter/capacity.
- If Windows does not offer FAT32 because the volume is large, first verify the device truly requires FAT32; exFAT is usually better for modern large removable storage.
- For a legitimate large FAT32 requirement, use a reputable maintained formatter and verify the resulting filesystem before copying data back.
How it works
FAT32’s 4-GB per-file limit is independent of total drive capacity. exFAT supports much larger files and broad modern compatibility, while NTFS offers Windows permissions/journaling but less universal device support.
Important considerations
Windows 10 is unsupported. Do not download random ‘FAT32 formatter’ executables, and never format a disk until its identity and backup are confirmed.
Practical guidance
Windows’ built-in `format` command also historically applies FAT32 size restrictions, so a command prompt is not automatically a solution for a large volume. If a camera/firmware device specifies a maximum card size or allocation-unit requirement, follow that device’s manual rather than formatting an arbitrarily large drive as FAT32.
Additional details
Before formatting removable media for a console, car, TV, camera, or BIOS updater, read that device’s storage requirements. Some devices require MBR rather than GPT, a specific allocation-unit size, or a smaller supported partition. The fact that Windows successfully formats a drive does not guarantee the target device can read it.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.