How do I Ctrl Alt Delete in Remote Desktop?
CTRL + ALT + END
Now on your host machine (A), press and hold the CTRL and ALT keys on your physical keyboard and then press the DEL key on the on-screen keyboard. That’s one way to do it. You can also open the on-screen keyboard on computer B and then type CTRL + ALT + END, which will send CTRL + ALT + DEL to computer C.