This article was previously published under Q303280
When you use the Local Users and Groups snap-in to view the members of a local group, the list may be empty or may not display all the members of the group. If you try to re-add a missing user account, you may receive the following error:
The following error occurred while attempting to save properties for group Administrators on computer computer name: The specified account name is already a member of the local group.
However, if you use the net user command on a missing account, the account is returned and appears as a member of the correct groups.
This problem may occur if a member of the local group has a name that is the same as that of the domain. For example, if the name of your domain is DOMAIN, and you add a local user who is named LocalMachine\Domain, to a local group, these symptoms may occur.
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was corrected in Windows 2000 Service Pack 3.