You can do it , but I am NOT recommend it because in that case if someone have your IP Address then could access your Windows using remote desktop. And people could use IP random generator find find IP and when there is NO Password could access it . therefore please use password and setup password to connect.
However , you could setup setting to connect with blank password :
1)go to control panel
3)look for local security policy
4)open it and look for security options
5)then in account you will see something like “Limit loca account use of blank password to console logon only
6)try to disable it and restart your PC
It should work, but as I said it might put your PC at RISK.