I already download Free trial ArcGIS Pro but I can not to sign in. Why? It has some relation with company I filled in? (I filled in University)
thanks
Did you read the fine print on the signup link
http://www.esri.com/en/arcgis/products/arcgis-pro/trial
you will be sent an email on how to finalize your account
Did you get one? (check junk folder just in case)
Login to ArcGIS Online from a web browser. you need to assign the ArcGIS Pro to the named user.
Configure licenses for One Member: Manage Licenses - ArcGIS Online
Then, you could sign-in to ArcGIS Pro using the named user credentials.