Assign a mount point folder path to a drive

Applies To: Windows 10, Windows 8.1, Windows Server (Semi-Annual Channel), Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

You can use Disk Management to assign a mount point folder path (rather than a drive letter) to the drive. Mount point folder paths are available only on empty folders on basic or dynamic NTFS volumes.

Assigning a mount point folder path to a drive

Note

You must be a member of the Backup Operators or Administrators group, at minimum, to complete these steps.

To assign a mount point folder path to a drive by using the Windows interface

  1. In Disk Manager, right-click the partition or volume where you want to assign the mount point folder path.
  2. Click Change Drive Letter and Paths and then click Add.
  3. Click Mount in the following empty NTFS folder.
  4. Type the path to an empty folder on an NTFS volume, or click Browse to locate it.

To assign a mount point folder path to a drive using a command line

  1. Open a command prompt and type diskpart.

  2. At the DISKPART prompt, type list volume, making note of the volume number you want to assign the path to.

  3. At the DISKPART prompt, type select volume <volumenumber>.

  4. Select the simple volume volumenumber that you want to assign the path to.

  5. At the DISKPART prompt, type assign [mount=<path>].

To remove a mount point folder path to a drive

  • To remove the mount point folder path, click it and then click Remove.
Value Description
list volume Displays a list of basic and dynamic volumes on all disks.
select volume Selects the specified volume, where volumenumber is the volume number, and gives it focus. If no volume is specified, the select command lists the current volume with focus. You can specify the volume by number, drive letter, or mount point folder path. On a basic disk, selecting a volume also gives the corresponding partition focus.
assign
  • Assigns a drive letter or mount point folder path to the volume with focus. If no drive letter or mount point folder path is specified, then the next available drive letter is assigned. If the drive letter or mount point folder path is already in use, an error is generated.
  • Using the assign command, you can change the drive letter associated with a removable drive.
  • You cannot assign drive letters to boot volumes, or volumes that contain the paging file. In addition, you cannot assign a drive letter to an Original Equipment Manufacturer (OEM) partition, EFI system partition, or any GPT partition other than a basic data partition.
mount= path Specifies an empty, existing NTFS folder where the mounted drive will reside.

Additional considerations

  • If you are administering a local or remote computer, you can browse NTFS folders on that computer.
  • Mount point folder paths are available only on empty folders on basic or dynamic NTFS volumes.
  • To modify a mount point folder path, remove it, and then create a new folder path using the new location. You cannot modify the mount point folder path directly.
  • When assigning a mount point folder path to a drive, use Event Viewer to check the system log for any Cluster service errors or warnings indicating mount point folder path failures. These errors would be listed as ClusSvc in the Source column and Physical Disk Resource in the Category column.
  • You can also create a mounted drive using the mountvol command.

See also