SU on windows 10

on Win 10 I have to sign in to use warehouse- but it doesn’t accept my sign in
& every time I SU comes up it tells me to try pro.Which I did on my laptop & i cant get in

Try this:

Sign out through [menu] Help > sign out…
Close SketchUp
Start SketchUp, use the welcome screen to sign in.
What version of SketchUp, btw?