Viewing Allocation Unit Size of a NTFS Disk

-> Open an “Administrator – Windows Powershell ISE”.

-> Execute below command,

fsutil fsinfo ntfsinfo C:

-> Output below,

Fsutil_Alloc_Size.PNG

-> “Bytes per Cluster” provides us the Allocation unit size. In my case it is 4 KB.

Thank You,
Vivek Janakiraman

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