I have recently installed Ubuntu 15.10 on a Lenovo Ideapad 300. All works fine. I have dual booted this so I can use Windows 10 for some old software.
When I boot I get into the grub menu. Choosing Ubuntu works fine, but when choosing Windows the Windows boot manager fails with the text: The Boot Configuration Data for your PC is missing or contains errors.
I Have found a peculiar "work around", if I enter "c" and get into the grub command line and then enter "exit", Windows 10 boots up as needed. Is there any way to fix this without this work around?