My start menu has started screwing about in Win 10. Sometimes, it won't be populated at all, just a big blank box, sometimes pressing the start button won't open it, sometimes it'll open, icons will be present, but you can't click on any of them (left or right). It would appear to be completely random, it's just done it now and the computers only been on for about 30 mins not doing anything. Restarting explorer fixes it, but there's obviously something wrong somewhere I just don't know where to start. I've tried googling, but all I seem to get is articles telling me how to use the start menu and threads giving the fix of restarting the explorer process. Does anyone have any ideas on where to start?