If the authentication scheme is different from Kerberos, or if the client computer is not joined to a domain, then HTTPS transport must be used or the destination machine must be added to the TrustedHosts configuration setting. Use winrm.cmd to configure TrustedHosts. Note that computers in the...
I found that if you use "mstsc /public" it runs RDP in public mode and has a more simplified credentials screen so you don't even have to mouse to anything. You just start typing your credentials. also, switches can be saved in shortcuts. I always run MSTSC from the run prompt ...