From your Windows Operating System (Client / Server), Hit Start Button then Run and type regedit.
registry Windows will be open,
Click on File, then select Connect Network Registry;
Type the remote computer IP Address (best practice) or host name in the Enter the object name to select (as below image) and the click OK
Press OK and you can manage now remote computer via registry :).
Now, it's very simple; Browse to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server
in the right panel, I have highlighted seelct fDenyTSConnection (REG_DWORD), select this option or search fDenyTSConnection registry with CTRL+F. Change the value data from 1 (Remote Desktop disabled) to 0 (Remote Desktop enabled).
Hey ! We have enable Remote Desktop without user interaction. Cheers