When working in RDP, there is often the need to send the good old “CTRL + ALT + DEL” when that process locks up, or perhaps you simply want to go to the option screen to change your password. When working in a Virtual PC you can use your menu system to send the command, but in RDP it can be a little more difficult to find.
Essentially use these commands to issue CTRL + ALT + DEL in an RDP session:
CTRL + ALT + END = CTRL + ALT + DEL in RDP
Hope it saves you some time!