Hi mdave,
I am sorry to tell you that we will no longer support Boxcryptor Classic for Windows 10.
For more information on upgrading to Boxcryptor 2.x please have a look at: https://support.boxcryptor.com/display/BCWINEN/Upgrade+from+Boxcryptor+Classic
As you own an unlimited license for Boxcryptor Classic, you might be interested in an discount on Boxcryptor 2.x - Just contact support@boxcryptor.com for appliance.
Kind regards,
Florian