Reinstall Grub in 16.04
34510
Grub Customizer doesn't change image background
8320
How can I install Windows after I've installed Ubuntu?
148973
How to restore Windows boot loader after removing Ubuntu
9235
grub: boot from ISO
49782
Installation type empty on 16.04 for a dual boot
124303
Remove GRUB and keep a Linux system
134817
How do I set Ubuntu to my default boot?
846
How to reinstall Ubuntu keeping my data intact?
9466
How to get to the GRUB menu at boot-time?
144330
Is there a way for grub to automatically reboot into Windows from Windows?
60113
System boots straight into Windows without showing GRUB
3776
How to restore a system after accidentally removing all kernels?
93688
How can I add a new operating system boot entry to the GRUB2 menu?
37518
Display grub menu and options without rebooting?
79692
Grub rescue prompt, repair grub
88164
How do I boot into recovery mode?
48941
How is /etc/default/grub generated during installation?