As far as I know the windows will lock you out and you won’t be able to use it after the deadline is passed so far you can’t do some "Personalization" and maybe some other smaller adjustment’s and things.
I have proof that my license is GENIUNE but as no one is contacted me and with no way to get the Microsoft Support attention I have no Idea how to proceed ,
I sent an email alerting GamersNexus explaining my situation which is very similar to all of yours to take a look at this situation here, now question is if the GN Team will find it interesting enough to take a look at it and get involved in some way .