Cubase crashing

I seem to be unable to open Cubase 7.5 freezes on ski remote, I haven’t changed anything other than update Cubase recently ? Now I cant make music ? Please help me resolve this …

Win 8.1 - Cubase 7.5

I am sorry for the trouble. What version and build of Cubase 7.5 do you have installed (opening splash screen, lower left corner). What has changed on the system since this issue started? Do you have any other versions of Cubase on this system?