How To Access an EFI Partition in Windows XP 64-Bit Edition

This article was previously published under Q294773
This article has been archived. It is offered "as is" and will no longer be updated.
This article describes how to access an Extensible Firmware Interface (EFI) partition on IA64-based computer.

back to the top

Access an EFI Partition

  1. At a command prompt, type mountvol drive letter: /s, and then press ENTER. For example, type:
    mountvol z: /s
  2. Type mountvol, and then press ENTER.

    You should now be able to see and access the mounted EFI partition.
back to the top

Available Mountvol Switches

The following switches are available to create, delete, or list a volume mount point
mountvol [drive:]path VolumeName
mountvol [drive:]path /D
mountvol [drive:]path /L
mountvol drive: /S
  • Path specifies the existing the NTFS file system directory in which 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.
  • /S mounts the EFI System Partition on the given drive.
back to the top

Possible Values for VolumeName and Current Mount Points



The EFI System Partition is mounted in the following location:
back to the top

Article ID: 294773 - Last Review: 12/06/2015 01:48:38 - Revision: 2.4

Microsoft Windows XP 64-Bit Edition, Microsoft Windows Advanced Server, Limited Edition

  • kbnosurvey kbarchive kbhowtomaster KB294773