You should fully understand the security implications before doing this. For certain applications (typically dedicated hardware such as a computer controlling a CNC machine) this may be a better option than using VNC.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa Set key "LimitBlankPasswordUse" value to 0 Copy to Clipboard
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa" /v LimitBlankPasswordUse /t REG_DWORD /d 0 /f
https://superuser.com/questions/106917/remote-desktop-without-a-password |