auto-mount VHD Disks

On Server 2008 R2 and newer, VHD files can be mounted using Windows Disk Management MMC (diskmgmt.msc):


You can mount a VHD using the “Action” Menu:


But as soon as the Server gets restarted, you need to re-mound the VHD File manually. Microsoft provides no way to do this automatically using onboard tools. So you have the following choice:

  1. either create a batch script that calls fsutil.exe to mount the VHD file on startup
  2. or to use the cool and easy VHDattach Tool:

This tools allows you to open existing VHD files and select “auto-mount” (see screenshot):


I mounted a Backup Exec Dedup Store as VHD file. For my example, it was necessary to re-configure the Dedup Service to Delayed start in services.msc.