You need to have Terminal Services enabled and running in order to
see any names in the User Name column in Task Manager.
Start | Run | Type: services.msc | OK |
Scroll down to and double click: Terminal Services |
Set Startup type to Automatic | Apply | Click the Start button | OK
From Task Manager Help:
User Name
[[The name of the user whose Terminal Services session owns the
process. The counter is available only when Terminal Services is
installed.
Monitoring Sessions
The Users tab displays users who can access this computer, and
session status and names. Client Name specifies the name of the
client computer using the session, if applicable. Session provides a
name for you to use to perform such tasks as sending another user a
message or connecting to another user’s session.
The Users tab is displayed only if the computer you are working on
has Fast User Switching enabled, and is a member of a workgroup or
is a standalone computer. The Users tab is unavailable on computers
that are members of a network domain.
To view user activity
Click the Users tab.
Notes
The Users tab is displayed if you have enabled Fast User Switching.
Fast User Switching is available only if you are working on a
computer that is a member of a workgroup or is a standalone
computer. Fast User Switching is unavailable on computers that are
members of a network domain. ]]
From:
http://www.blackviper.com/WinXP/service411.htm#Terminal_Services
Terminal Services
[[Allows remote login to the local computer. This service is
required for Fast User Switching, Remote Desktop Server and Remote
Assistance. You will not be able to view who is logged on to a
particular computer by viewing the "user" tab located in the Task
Manager if this service is disabled. For security reasons, disable
this unless you specifically require its functionality. For some
reason, start this service to install Norton 2003.]]