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How do I check the cluster/allocation size of an exFAT drive on Windows?
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How do I check the cluster/allocation size of an exFAT drive on Windows?
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You can use wmic
C:\>wmic volume get driveletter,blocksize
BlockSize DriveLetter
4096 D:
4096 C:
On powershell you'll have various solutions like below
PS C:\> (Get-Volume C).AllocationUnitSize
4096
PS C:\> (Get-WmiObject win32_volume | where { $_.driveletter -eq 'C:' }).BlockSize
4096
Alternatively you can also run fsutil fsinfo ntfsinfo drive:
as admin to get more detailed information, or use fsutil fsinfo ntfsinfo <drive> | findstr /c:"Bytes Per Cluster"
to get just the cluster size
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Right-click the drive and click "format", and the pop-up window will show the current cluster size under "allocation unit size". Be careful that you don't actually format the disk though!
fsutil
only works for NTFS drives, butwmic
worked, and wasn't as risky as my solution. Thanks! – woojoo666 – 2018-09-16T10:34:28.273