Check the box Trust server certificate and you're on the air.
I should add that this is not a good solution if you are in a larger network, as you could be subject to a so-called man-in-the-middle attack. The correct solution in that case would be to install a certificate on SQL Server which is then trusted by certificates in the Trusted Certificate stores on the users' machines.
However, for a network at home, nah, that's over the top. On my machines at home I run with Trust server certificate.