Running Windows Disk Defragmenter Requires Administrator Privileges

This article was previously published under Q231176
This article has been archived. It is offered "as is" and will no longer be updated.
SUMMARY
Windows includes a Disk Defragmenter tool. Although any user can gain access to the Disk Defragmenter console, the ability to analyze or defragment a volume requires administrator privileges. If you do not have administrator privileges and you try to use Disk Defragmentor, you may receive the following message:
Disk Defragmenter

You must have Administrator privileges to defrag a volume.
MORE INFORMATION
Disk Defragmenter was designed primarily for stand-alone workstations or servers whose users have the ability to log on locally with administrator privileges.Disk Defragmenter is not intended to be a tool for administrators to maintain networked workstations. This version is not designed to be run remotely and cannot be scheduled to automatically defragment a volume without interaction from a logged-on user. The only way a non-administrator can defragment a local volume is to run the Dfrg.msc console in the context of a user who has administrator privileges. You can accomplish this by running the following command:
runas /user:administrator@domain.company.com "mmc dfrg.msc"
The user is prompted for the administrator password. This command may be useful for an administrator who wants to run a defragmentation on a user's computer without forcing the user to log off.
defrag
Properties

Article ID: 231176 - Last Review: 12/05/2015 14:26:36 - Revision: 3.2

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition, Microsoft Windows 2000 Datacenter Server

  • kbnosurvey kbarchive kbinfo KB231176
Feedback