By AOMEI / Last Updated May 15, 2020

About the problem

When you use the Windows built-in command line tool Diskpart.exe to manage disk or partitions on your computer in Windows 10/8/7 or Windows Server 2016/2012/2008, you might get an error say that the disk management services could not complete the operation. This error message indicates that the Virtual Disk service has been disabled somehow. The Virtual Disk service gives you the administrator privilege to use Diskpart regarding disk partition storage management. If this service get disabled, Diskpart.exe is unable to respond correctly.

Quick solution

Since the cause of this problem is clear, you can easily fix it using the following steps:

1. Click Start, and then go to All Programs > Administrative Tools > Services. Or you can type “services.msc” in the Run box and press Enter.


2. In the Services window, scroll down to locate the Virtual Disk service.

3. Right click on Virtual Disk Service, and click “Properties”.


4. In the pop out dialog box Virtual Disk Properties, select “Manual” or “Automatic” under Startup type instead of “Disabled”. Then click “OK” to save the change.


5. If the Diskpart has encountered an error like before, locate the Logical Disk Manager Administrative service and manually start the service.

After these steps, the problem of the operation failed to complete disk management should go away. However, if you cannot get Diskpart to work no matter what, you can try a free alternative to Diskpart.exe.

DiskPart alternative

AOMEI Partition Assistant Standard is free partition software developed to manage the drives installed in a computer including hard disk drives, optical disk drives, flash drives, etc. one can move or resize partition by dragging and moving on the disk map; one can convert disk between MBR and GPT without data loss; one can migrate OS to SSD or another HDD without reinstalling system and applications; one can quickly partition a hard drive with preset partition layout; one can find more functions that you need while using it. What’s more, you can preview and cancel all the operation before applying, and you can recover a mis-deleted partition by using Partition Recovery Wizard. At last but not least, the concise graphical user interface of AOMEI Partition Assistant displays as blow.


Besides, AOMEI Partition Assistant also provides partassist.exe utility allowing users to manage hard disk partitions from command prompt. You can use most of AOMEI Partition Assistant’s features from command line, like resize/move partition without data loss, create/delete/format a partition, initialize a disk, and rebuild MBR. It is really helpful for those who like to use command prompt to manage multi-task instead of opening many windows. Furthermore, AOMEI Partition Assistant offer a Professional Edtion to allocate free space from one partition to another, convert primary partition to logical, convert dynamic disk to basic, and many more. For server users, you can try AOMEI Partition Assistant Server, which supports Windows server 2008/2008 R2/2012/2012 R2/2016.

For those extraordinary features, AOMEI Partition Assistant can be regarded as the best free diskpart command line alternative. If you cannot fix the problem that disk management services could not complete the operation, you can also use this DiskPart alternative. Now you can free download it and enjoy.