When you open Disk Management MMC console (diskmgmt.msc), one of the following error messages may occur:

The Logical Disk Manager service is disabled. A connection cannot be established.

Unable to connect to Logical Disk Manager service.

The dependency service or group failed to start.

The specified service does not exist as an installed service.

The dependency service does not exist or has been marked for deletion.


This happens if one of the following services are missing in the system.

  • Logical Disk Manager
  • Logical Disk Manager Administrative Service

To restore the missing services, download diskmgmt.reg file available at the bottom of this page and save it to Desktop. Then, right-click the file and choose Merge. Click Yes to confirm. Restart Windows and see if you're able to launch Disk Managemt MMC successfully.