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Applies To: Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows Server 2012 R2, Windows Server 2012, Windows 8

Enables or disables the automount feature. When enabled (the default), Windows automatically mounts the file system for a new basic or dynamic volume when it is added to the system, and then assigns a drive letter to the volume.

For examples of how this command can be used, see Examples.


automount [ { enable | disable | scrub } ] [noerr]





Enables Windows to automatically mount new basic and dynamic volumes that are added to the system and to assign them drive letters.


Prevents Windows from automatically mounting any new basic and dynamic volumes that are added to the system.


Disabling automount can cause failover clusters to fail the storage portion of the Validate a Configuration Wizard.


Removes volume mount point directories and registry settings for volumes that are no longer in the system. This prevents volumes that were previously in the system from being automatically mounted and given their former volume mount point(s) when they are added back to the system.


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


  • In storage area network (SAN) configurations, disabling automount prevents Windows from automatically mounting or assigning drive letters to any new basic volumes that are visible to the system.


To see if the automount feature is enabled, type the following commands from within the diskpart command:


To enable the automount feature, type:

automount enable

To disable the automount feature, type:

automount disable

Additional references

Command-Line Syntax Key

DiskPart Commands