For external devices, particularly portable USB flash drives and SD memory cards, FAT32 is the standard file system. It is the file system that works best with the majority of popular hardware and operating systems, including Windows and macOS. Portability is a benefit of utilizing the FAT32 file system.
Formatting a 32GB USB flash drive or less to FAT32 is pretty straightforward. However, you can only rely on CMD (often Diskpart and Powershell) and a third-party FAT32 format tool if you wish to format 64GB/128GB/256GB USB to FAT32.
Part 1. Things to Keep in Mind Before Formatting USB Drive to FAT32
- Don't forget to back up important files on the USB drive. Either simply copy and paste them into the computer, or use a data backup software.
- FAT32 also has certain drawbacks or, to put it another way, constraints. First and foremost, you must convert FAT32 to NTFS or exFAT if you utilize a single file larger than 4GB. In addition, FAT32 can only be used to format drives between 2GB and 32GB in size according to the manufacturer's standards, which is why native Windows programs have the same restriction. There is no "FAT32" option when changing a USB disk larger than 32GB in Windows Explorer.
Related tips:
Part 2. How To Format USB (Smaller than 32GB) to FAT32 on Window 10/11
There are typically different ways for users to format USB to FAT32 on Windows 10/11, which has the most excellent compatibility compared to other file systems.
Method 1: Format USB to FAT32 via File Explorer
This approach can only be used to change a USB disk in FAT32 format if it is less than 32GB. Remember that the USB drive's prior data will be deleted during the formatting procedure.
Step 1. Connect the USB drive or the desired external hard drive to the Windows 10 computer.
Step 2. Press the Start button and select This PC to open the File Explorer.

Step 3. Right-click on the USB drive that you want to format to FAT32 and select Format in the menu.

Step 4. Click the File system drop-down menu and choose FAT32 if it isn't already mentioned. Then, click the Start button.

Step 5. A warning reminds you that all data on the USB flash drive will be deleted with the formatting process. Click OK to start changing your USB flash drive to FAT32.

Note: Please back up your important files in the USB flash drive before proceeding with the Format.
Step 6. Once the drive has finished formatting, click OK to complete the procedure.
Method 2: Format USB to FAT32 via Disk Management
Your USB drive could not appear in File Explorer if Windows didn't give it a letter for some reason or if its file system was damaged. Fortunately, formatting it from the Disk Management software is simple.
Step 1. Use the shortcut Win+X to open Windows' administrative quick menu.
Step 2. Select "Disk Management." You may also find and launch it from the Start menu by hitting the Win key and entering the utility's name.
Step 3. You will get a list of all storage devices and their partitions while using Disk Management. You should see one or more partitions listed within your disk if it functions correctly. They may each be formatted separately. Alternatively, you can click on each one and choose "Remove Volume" until none are left if you'd rather get rid of them and utilize the whole space on your disk as one continuous block.

Step 4. If the space on your USB drive seems empty, right-click on it and choose "New Simple Volume."

Step 5. To create a partition, use the "New Simple Volume Wizard" and then format it.

Step 6. You may use a lesser volume size if you wish to divide your USB drive into more than one. By doing this, you'll free up space on your disk so that you may subsequently add additional partitions.

Step 7. Directly from this wizard, you will be able to give a drive letter to the partition you are creating. Alternatively, you may map it to an empty NTFS folder without providing a drive letter.

Step 8. You may select a file system and allocation unit size, input a volume label, and choose whether to use a fast format, much like when formatting from File Explorer.

Step 9. The wizard will offer an overview of your options before starting to format. To accept them and format your USB device, click "Finish."

Part 3. How to Format USB (64GB/128GB or Larger) to FAT32
If you want to format 64GB or 128GB USB to FAT32, you can depend on CMD (Usually diskpart and PowerShell) and a third-party FAT32 format tool.
Method 1: Use PowerShell to Format USB to FAT32 on Windows 10/11
You can format USB drives larger than 32 GB to the FAT32 file system using Windows PowerShell. However, formatting makes the procedure less effective and more likely to take longer. For example, if you want to format 64GB USB to FAT32, do the following:
Step 1. Press "Win + X" on your keyboard to open the Start menu. Then, locate and choose the "Windows PowerShell (Admin)" option from the menu to launch PowerShell as the administrator.

Step 2. Type the command "format /FS: FAT32 #:" in the PowerShell window and hit Enter to execute it. (Instead of using #, use your Drive letter.)

Step 3. Your 64 GB USB Drive will begin to format to the FAT32 file system as soon as the command is provided. The procedure could take many hours to finish, but if you want to do it quickly, you can utilize several third-party programs to do it more effectively.
Method 2: Use Command Prompt to Format USB to FAT32
Apart from PowerShell, the built-in Command Prompt in Windows can also be used as a FAT32 format tool.
Step 1. First, connect the USB memory stick to your computer and wait for it to be recognized.
Step 2. Go through Start > Accessories > Command Prompt or Start > Run > type "cmd" > Enter to launch Command Prompt.

Step 3. Enter the following command at the Command Prompt if your USB device has been given the letter "F":: format F: /fs:FAT32

Step 4. When asked whether you want to continue or stop formatting, hit Y (for Yes) or N (for no).
Method 3: Use Third-party FAT32 Formatter Tool - AOMEI Partition Assistant
What should you do if your USB flash drive has more than 32GB and you wish to change it to FAT32 quickly? The solution is to use a free FAT32 format program from a third party, such as AOMEI Partition Assistant Standard, which makes it simple and practical to format USB flash drives larger than 64GB and RAW USB drives as FAT32.
Additionally, it enables you to move your operating system from an MBR drive to an MBR disk and convert from NTFS to FAT32 without losing any data. It works with various Windows versions, including Windows 10/8.1/8/7, XP, and Vista. For example, if you want to format 128GB USB to FAT32, do the following steps:
Step 1. Run AOMEI FAT32 Format Tool after installing it. Then, Right-click the USB flash drive partition in the main panel and choose Format Partition.

Step 2. Select FAT32 from the list of file systems and press the OK button to format USB to FAT32.

Step 3. To format USB to FAT32, click Apply and Proceed.

Video Tutorial-How To Format USB to FAT32
Part 4: How to Recover Lost Data after Formatting a USB Drive to FAT32?
The formatting USB drive is an easy task. But before formatting, some might be worried about the files or data in the USB drive. There may be irrelevant as well as very important files that can’t be replaced in a USB drive. But what to do if the drive is a corrupt one or malfunctioning in some ways?
You need not worry as there are varieties of applications available in the market for recovering such files. An application like Recoverit helps you to recover almost all data, ranging from documents to big size videos from a USB drive even after formatting to FAT32.

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You can recover all of your data from USB Drive empty due to various reasons like Malware attack, corruption, accidental deletes, damage, etc.
You can recover data from all kinds of storage drives like USB Drive, SD card, SSDs, HDDs, Floppy Disks, Pen Drive, etc.
You can preview files before recovering.
You can even Pause and Resume the scanning process.
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Step 1: Select the external device/drive
To recover deleted or lost files from an external device, it needs to be selected as the target location for data searching and scanning

Step 2: Scan the removable media
A complete scanning will be initiated once you select Start. The scanning usually takes some time depending on the size of the USB drive In between the process, the desired files can be located and filtered.

Step 3: Preview of files and recovery
After the whole scanning process, Recoverit allows the user to preview the located files. All the files including photos, videos, documents, videos, audios, etc. can be previewed.
Then, select the files that you need to recover and tap the Recover bar.

All the files will be recovered and saved for your use.
Final Thoughts
This article found all possible ways to format USB to FAT32. You may format your USB flash drive with FAT32 using Disk Management or Diskaprt if it is less than 32GB in size. There are still several methods to format a bigger USB Drive, such as a 128 GB USB Drive to the FAT32 file system, albeit the procedure is a bit challenging. If PowerShell proves ineffective in formatting a 128 GB USB drive to the FAT32 file system, you may try a FAT32 format tool. Applying AOMEI Partition Assistant Standard is recommended when formatting a USB flash device to FAT32.