Format 128GB USB to FAT32 in Windows 10, 11 in an Simple Way

AOMEI Partition Assistant can help you format 128GB USB flash drive, SD card, or external hard drive to FAT32 in Windows 10 or 11 without effort.


By Bryce / Updated on May 13, 2024

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Can’t I format 128GB USB flash drive stick to FAT32?

“I intend to format my 128GB SanDisk USB flash drive stick into FAT32, thus I can use it in different electronic devices. But there is no FAT32 option in Format window. I have ever formatted a 16GB SD card into FAT32 file system successfully within File Explorer. What happens? How can I change my USB flash drive to FAT32 file system in success? Thanks!”

No FAT32 Option

A USB format tool is helpful!

FAT32 (File Allocation Table 32), used as an extension of FAT16, has great compatibility. It can be supported by PSP, XBOX360 and etc. Usually, you can format a drive into FAT32 in Windows smoothly. However, Windows supports you to format partition not larger than 32GB to FAT32: within File Explorer or Disk Management, FAT32 option doesn’t exist; within Diskpart utility, an error message- the volume is too big for FAT32.

The Volume Is too Big

A reliable FAT32 USB format tool – AOMEI Partition Assistant can give you help! It is very easy to install and handle. With the help of it, you can format a large partition beyond 32GB, like 64GB, 128GB, or 256GB to FAT32 in Windows 11/10/8/7. What’s more, it is able to convert NTFS to FAT32 without data loss and versa vice.

Format 128GB USB into FAT32 within three steps

Now, let’s see how to use AOMEI Partition Assistant Professional to format 128GB USB into FAT32 in Windows 11/10/8/7. Firstly, free download, install and run it. Then, do the steps given below:

Try It FreeWin 11/10/8.1/8/7
Secure Download

Step 1. In the main user interface, right-click the partition on 128GB USB flash drive or SD card and select Format Partition


Step 2. Set the file system of partition to FAT32 and then click OK button. You are allowed to change cluster size or add a partition label as well.

Format Partition

Step 3. You’ll return to the main interface, click Apply and Proceed after confirmation.



▪ Formatting will erase all data on the USB drive, thus you’d better back up necessary files before this operation.
▪ If the USB drive is originally formatted with NTFS file system, you can convert it to FAT32 without formatting.

Wrap things up

When your USB flash drive or SD card is not beyond 32GB, you can choose to format it within Windows File Explorer, Disk Management, or Diskpart utility as you want. But for formatting 128GB USB to FAT32 file system in Windows, AOMEI Partition Assistant is highly recommended.

In fact, it is more than a USB format tool. It enjoys many other powerful features like creating and managing the second partition on a USB flash drive or SD card, adding non-contiguous unallocated space to the partition that you want to extend, and so on. You can experience more advanced functions, including recovering lost partition on external hard drive, converting MBR system disk into GPT and etc.

Bryce · Staff Editor
Bryce is an editor of AOMEI Technology, he covers backup & restore, hard disk & partitions management, cloud files transfer, website & database backup and so on for AOMEI. He enjoys helping people find solutions to their problems. He loves traveling, Sleeping, reserching and so on. He enjoys helping people find solutions to their problems. He loves traveling, Sleeping, reserching and so on. He would like to spend all time on reaserching computer problems. He is a very cute boy.