Juan and Niall,
I was playing with PI, using the file explorer to open files and an update came through, which I installed. When reopening PI, the top menus were still not working, but I continued to try. When I hit the window icon to leave full screen, it worked. All the menu items started working. I went to full screen and all menu items worked. I closed and reopened PI and all items worked. I believe that I did have the Windows 10 issue you plan to address.
Regards,
Charlie