If you are new to Quixel Suite you will find this very useful, you need to sign up to Microsoft.NET and create a free account. Then you need to go to benefits section and activate a 3-month pluralsight sub and create account there.
Microsoft site https://my.visualstudio.com/?wt.mc_id=AID536052_EML_4769674 Then you get email and a link to follow to sign up it's that easy. Worth mentioning the normal trial is only 10 days so take advantage of this offer while you can.