Computer and Software Support


Shrink 

 

DiskPart 

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Syntax: shrink [DESIRED=<N>] [MINIMUM=<N>] [NOWAIT] [NOERR]
shrink QUERYMAX [NOERR]

Reduces the size of the volume with focus by the specified amount. Makes free disk space available from unused space at the end of the volume. A volume must be selected for this operation to succeed.

DESIRED=<N>

Specifies the desired amount of space in megabytes (MB) to reduce the size of the volume by. If a desired amount is not specified, the volume will be reduced by the maximum amount of free space available on the volume.

MINIMUM=<N>

Specifies the minimum amount of space in MB to reduce the size of the volume by.

QUERYMAX

Returns the maximum number of bytes that the volume can be reduced by (the free space available on the volume). This value may change if applications are currently accessing the volume.

NOWAIT

Forces the command to return immediately while the shrink process is still in progress.

NOERR

For scripting only. When an error is encountered, DiskPart continues to process commands as if the error did not occur. Without the NOERR parameter, an error causes DiskPart to exit with an error code.

If a MINIMUM amount is not specified, the volume will be reduced by either the DESIRED amount (if specified), or by the maximum amount of free space available on the volume. If a MINIMUM amount is specified but not enough free space is available, the command will fail.

This command works on basic volumes, and on simple or spanned dynamic volumes. You can reduce the size of a volume only if it is formatted using the NTFS file system or if it does not have a file system.

Examples:

SHRINK DESIRED=500 MINIMUM=250

SHRINK QUERYMAX