Hello and welcome to the privacyIDEA community.
Did you read this central post?
When you say “win10 client”, this is a term we do not use, since there is no generic windows client.
I suppose you are talking about the privacyIDEA Credential Provider, which allows authenticating against privacyIDEA, when logging in to the Windows desktop?
It is here:
Note, that the demo subscription will only work for up to 50 users.