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fsutil volume

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Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows 10, Windows Server 2012 R2, Windows 8.1, Windows Server 2012, Windows 8

Dismounts a volume, or queries the hard disk drive to determine how much free space is currently available on the hard disk drive or which file is using a particular cluster.

Syntax

fsutil volume [allocationreport] <volumepath>
fsutil volume [diskfree] <volumepath>
fsutil volume [dismount] <volumepath>
fsutil volume [filelayout] <volumepath> <fileID>
fsutil volume [list]
fsutil volume [querycluster] <volumepath> <cluster> [<cluster>] … …

Parameters

Parameter Description
allocationreport Displays information about how storage is used on a given volume.
<volumepath> Specifies the drive letter (followed by a colon).
diskfree Queries the hard disk drive to determine the amount of free space on it.
dismount Dismounts a volume.
filelayout Displays NTFS metadata for the given file.
<fileID> Specifies the file id.
list Lists all of the volumes on the system.
querycluster Finds which file is using a specified cluster. You can specify multiple clusters with the querycluster parameter.
<cluster> Specifies the logical cluster number (LCN).

Examples

To display an allocated clusters report, type:

fsutil volume allocationreport C:

To dismount a volume on drive C, type:

fsutil volume dismount c:

To query the amount of free space of a volume on drive C, type:

fsutil volume diskfree c:

To display all the information about a specified file(s), type:

fsutil volume C: *
fsutil volume C:\Windows
fsutil volume C: 0x00040000000001bf

To list the volumes on disk, type:

fsutil volume list

To find the file(s) that are using the clusters, specified by the logical cluster numbers 50 and 0x2000, on drive C, type:

fsutil volume querycluster C: 50 0x2000