An RDP (remote desktop protocol) useful tip

To send CTRL-ALT-DELETE to the remote machine it’s possible to use the key combination CTRL-ALT-END.

When is not possible, e.g. when you are nesting rdp in rdp, it’s possible to launch the following command C:\Windows\explorer.exe shell:::{2559a1f2-21d7-11d4-bdaf-00c04f60b9f0}.