Change Machine Password While Working on Remote Machine

Want to change the password of remote machine. Are you not able to able to change the Password for remote machine (remote machines - mstsc 1 > mstsc 2 >mstsc 3) no problem perform below steps:

1. Login remote machine (for which you want to change the Password)
2. Enter in Full Screen Mode ( maximize Window)
3. Open On-Screen-Keyboard on machine where need to change the Password
4. Press button CTRL + ALT ( from Keyboard) and DEL (using mouse, from on-screen-keyboard)
5. Choose Option "Change Password"
6. Change your Password !