[fredoralive]

Looking at the specification[1], it seems ExFAT uses an old style 2 second granularity FAT timestamp, but with an extra separate single byte field to give 0-199 * 10ms extra for fine(r) grained time stamps. It's possible Windows just ignores the high resolution field? Bit odd for Microsoft's own implementation to ignore their own enhancements though.

I do have to ask the idiot question that you are sure you formatted the drive as ExFAT and not FAT32?

[1] https://learn.microsoft.com/en-us/windows/win32/fileio/exfat...

[farrisbris]

I'm quite sure yes. https://learn.microsoft.com/en-us/windows/win32/api/fileapi/... returns exFAT and it says exfat for that partition in the disk management tool.