Windows 10 update removed GRUB menu completely
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
60113
System boots straight into Windows without showing GRUB
135572
How to remove the Ubuntu menu of Windows Boot Manager?
89
How do I remove old kernel versions to clean up the boot menu?
30233
How can I fix/install/reinstall grub?
132354
Removed Windows 7 and installed Ubuntu Server 12.04, but Windows Boot Manager still appears
111167
How to remove Windows 10 from Windows Boot Manager after uninstalling it?
101071
Windows 7, Windows 8 entries missing after reinstalling grub
33870
Windows & Ubuntu dual boot.No menu to choose OS?
21732
Can't load GRUB all of a sudden (UEFI problem)
17245
Add Windows 10 to GRUB OS list
133911
How to disable Grub's menu from showing up after failed boot
115558
After Windows 10 upgrade I can no longer access BIOS
86703
Windows 10 Replacing Grub
17143
Windows 8 removes Grub as default boot manager
2222
GRUB does not detect Windows
66116
Grub menu not showing up at boot