Is anyone out there running Access on an installed standalone license alongside a standard Office license? That is you are not running Access via Office Pro or 365. Further, is your OS Win10 and have you done the recent big cumulative Win10 upgrade? If so, please, from any of your Office products can you check via the File tab and then Help what Microsoft think are your licensing operations. I have two independent systems both with Office 2010, one with a standalone Access 2010 license & the other a standalone Access 2013 license. Post that Win10 update, Microsoft thinks that both my PCs are running trial versions of Office Pro and have stopped Access from working. If it has happened to both my PCs I cannot believe I am alone in this. Is no one else in the same boat as me?