Sofia,
Just so you know, you may purchase a year of PST Silver Support for only
US$35 (or US$195 for their Gold Support). I renew my Silver Support
every year, and I pester PST Support all the time, and they treat me
pretty well. $35/year seems worth it to me. See
www.psychology-software-tools.mybigcommerce.com/other/support-plans/
As to your question, so far we have had no trouble with the hardware key
on Windows 10. We do have trouble getting .NET 3.5 working under
Windows 10, but we have that ironed out now -- post a question here if
you need instructions on that (PST Support would also help with this,
but I think my instructions are better, although really I just stole
them from
www.kunal-chowdhury.com/2015/08/windows-10-dotnet-framework.html#iyjjw5OIpd2LgUq8.97
).
-- David McFarlane