USB stuck on FAT32, will not format to exFAT

I keep having a problem where every time I try to reformat it with disk utility, it keeps saying that it cannot modify the partition map. How do i fix this?

Posted on Mar 27, 2026 7:27 PM

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Posted on Mar 27, 2026 8:05 PM

In Disk Utility, ensure Show All Devices is selected, and that you are selecting the whole device:


If the particular device you are working with has a write-lock switch, ensure it is not write-locked.

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USB stuck on FAT32, will not format to exFAT

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