Microsoft Windows [Version 10.0.16299.98]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>mountvol
Creates, deletes, or lists a volume mount point.

MOUNTVOL [drive:]path VolumeName
MOUNTVOL [drive:]path /D
MOUNTVOL [drive:]path /L
MOUNTVOL [drive:]path /P
MOUNTVOL /R
MOUNTVOL /N
MOUNTVOL /E
MOUNTVOL drive: /S

path        Specifies the existing NTFS directory where the mount
point will reside.
VolumeName  Specifies the volume name that is the target of the mount
point.
/D          Removes the volume mount point from the specified directory.
/L          Lists the mounted volume name for the specified directory.
/P          Removes the volume mount point from the specified directory,
dismounts the volume, and makes the volume not mountable.
You can make the volume mountable again by creating a volume
mount point.
/R          Removes volume mount point directories and registry settings
for volumes that are no longer in the system.
/N          Disables automatic mounting of new volumes.
/E          Re-enables automatic mounting of new volumes.
/S          Mount the EFI System Partition on the given drive.

Possible values for VolumeName along with current mount points are:

\\?\Volume{3a9143a3-dc74-11e7-b212-f6327d088cb9}\
C:\

\\?\Volume{1f48332a-ebbf-4ac9-92ba-edf55bed0f14}\
D:\

\\?\Volume{bff9f3c1-0000-0000-0000-100000000000}\
E:\

\\?\Volume{3a9143a2-dc74-11e7-b212-f6327d088cb9}\
*** NO MOUNT POINTS ***

\\?\Volume{3a9143a4-dc74-11e7-b212-f6327d088cb9}\
*** NO MOUNT POINTS ***