To help make things a little easier for you, Windows Remote Desktop Connection maintains a list of the clients that you have connected to. This makes it easier for you to re-connect to clients that you need to frequent log into remotely. The Remote Desktop Connection does not have a mechanism in the GUI to remove entries from this list. To do so, you must edit the registry.
· Click Start.
· Type regedit and press Enter.
· Browse to HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default
· In this case, the name of the computer in the list is QC6
By removing this entry, you will remove it from the list in Remote Desktop.