Easily Solved: Can’t Format to FAT32 for USB Drive
It's unavailable to format a partition beyond 32GB to FAT32 via Windows native tools. In such conditions, you can turn to AOMEI Partition Assistant.
You may choose to format your USB drive like USB flash drive or SD card to FAT32 file system, as FAT32 has great compatibility – it can be supported by different operating systems including Windows OS and Mac OS and various electronic devices. But you’ll find that you can’t format to FAT32 for USB drive out of different reasons.
For specific situations, different solutions will be presented in detail to assist you to solve format to FAT32 failure for USB drive.
If you need to format large partition, such 64GB or 128GB partition to FAT32 or format the second partition on SD card/USB flash drive, you can turn to AOMEI Partition Assistant Standard, a comprehensive and all-round USB FAT32 format tool for Windows operating system. It can help you to complete these operations quickly and simply. Free download it and have a look at how it works (Take formatting large partition to FAT32 as an example).
Step 1. Install and run it. Right-click the partition needs to be formatted to FAT32 and choose “Format Partition”.
Step 2. It will pop up a small window, choose FAT32 among displayed file systems and click “OK”. You are allowed to change cluster size of this partition and add partition label to it as well.
Step 3. Return to the main console and you can review the operation. Please click “Apply” > “Proceed” after confirmation.
As mentioned above, you can’t format read-only USB drive to FAT32 file system. If you need to do so, you can remove write protection from it. Here offers you some solutions.
Way 1. Clear readonly attributes using Diskpart
1. Open Run dialogue by pressing Windows+R simultaneously.
2. Input “diskpart” and hit Enter key.
3. Type the following command and hit Enter after each command.
▪ list disk
▪ select disk n
▪ attributes disk clear readonly
Way 2. Disable write protection in Registry Editor
1. In Run box, type “regedit” and press “Enter” key.
2. Go to the path given below:
3. Right click the WriteProtect and change the value from 1 to 0. Then, click “OK” to disable read only for your USB drive.
Way 3. Adjust Windows local group policy
1. In the Run dialogue, input “gpedit.msc” and hit “Enter” key.
2. In the Windows local group policy editor window, navigate to:
Computer Configuration > Administrative Template>System > Removable Storage Access.
3. Disable “Removable Disks: Deny execute access”, “Removable Disks: Deny read access” and “Removable Disks: Deny write access”.
After removing write protection, you will be able to format USB drive to FAT32 or other file system.
If you can’t format to FAT32, you should figure out the reason for the issue at first. If the partition is too large or the partition is on SD card/USB flash drive but not the first partition, turn to AOMEI Partition Assistant Standard to format the partition with FAT32 file system immediately. If the USB dive is write-protected, change its read-only status to normal firstly. Then, you can use Windows built-in tools or AOMEI Partition Assistant Standard to format it.