Cause: Automount is disabled on the Windows 10 system.


  1. Verify the device is unlocked.
    • Drives that are plugged in, yet have not been authenticated, are receiving power but are not communicating with the computer. Unlocking the device will allow data communication with the computer.
  2. Verify the disk is mounted.
    • On Windows 10, you can manage drive letters without third-party tools using Disk Management. To assign a new drive letter, do the following:
      1. Use the Windows key + X keyboard shortcut to open the Power User menu.
      2. Select Disk Management.
      3. Right-click the drive on the list and select Change Drive Letter and Paths.
      4. Click the Change button.
      5. Use the drop-down menu and select the drive letter you want to use.
  3. Verify the disk is formatted.
    • To format your drive, see the article on using the DataLocker Disk Formatter Tool

      Please note that this will erase all data on the drive.

    • You may need to verify the disk is mounted again after the format process is complete.
  4. Verify that the disk is initialized.
    • Drives that have been reset will need to be initialized in Disk Management.
      1. Open Disk Management
      2. You should be prompted to initialize the disk. Initialize it as GPT.
      3. Right-click on the unallocated disk space and create a new simple volume.