Since I used to connect to different servers, my remote desktop connection client had lot of unused IP’s.. I was thinking about a way to remove it as there is no option provided to remove it on the interface.
It seems pretty easy following the steps from Microsoft Support Website.
To remove entries from the Remote Desktop Connection Computer box in the Windows Remote Desktop Connection client, start Registry Editor, and then click the following registry key:
Entries appear as MRUnumber, and are visible in the right pane. To delete an entry, right-click it, and then click Delete.
If you are going to try it, please keep a backup of registry as if you do any thing wrong can crash your windows..