noun, Chemistry. 1. the univalent ion, NH 4 + , or group, NH 4 , which plays the part of a metal in the salt formed when ammonia reacts with an acid. ammonium nitrate is extremely common, and pretty dangerous, and also extremely useful.
1 Double-click the Allow users to connect remotely using Terminal Services policy. 2  Set the policy to Enabled, and then click OK. 3  Right-click My Computer and click Properties. 4  Click the Remote tab. 5  In the Remote Desktop section, click to clear Allow users to connect remotely to this computer, and then click OK.ou can also use the following procedure to disable Remote Desktop; however, if you use the preceding procedure, the following configuration is overridden: NOTE: Remote Desktop is disabled by default on Windows XP Professional. 1  Click Start, click Run, type gpedit.msc, and then click OK.
 section. 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.To remove entries from the Remote Desktop Connection Computer box in the Mac Remote Desktop Connection client, delete the Users:Username:Library:Preferences:Microsoft:RDC Client:Recent Servers file.owever, the Remote Desktop Connection tool does not provide a way to clear the list of computers or remove one or more entries from the Computer box. To have us remove all the entries in the Windows Remote Desktop Connection client for you, go to the  Fix it for me  section.