When I installed WindowsBlinds---8.05 (027 - Windows 8 Edition) - 64 bit OS---on my Win-8.1 machine it was running the "Classic Start" and the Start Menu would not skin. Everything else worked fine except for that. Then I installed the trial version of Start8 and the problem resolved. So, is it also necessary to purchase Start8 in order to have WindowsBlinds skin the Start Menu? Thank you.