Windows 10/ Ubuntu dual boot suddenly doesn't give option to boot into ububtu
14617
Dual-boot boot menu does not show up after installing Ubuntu 15.10 alongside Windows 10
107544
How can I remove Ubuntu from my system and install the Windows bootloader?
110305
Why is Grub menu not shown when starting my computer?
127342
How do I boot into single-user mode from GRUB?
105222
Windows 8 won't boot via GRUB after installing Ubuntu with boot-repair
52539
Why can't I choose Ubuntu at boot?
38826
How to remove Ubuntu from dual boot system with Windows?
14902
Dual boot Ubuntu 12.04/Windows 7
23043
Windows 8 installed Ubuntu 12.10 boots straight to Windows 8
56110
Dual Boot Goes to Win8 Doesn't even Show Grub screen
39946
How to show GRUB after install Ubuntu over Windows 8?
130661
grub-install: this GPT partition label contains no BIOS Boot Partition
21039
Can't boot Windows 7 after installing Ubuntu 12.04 LTS
94768
Dual boot windows 8 and Ubuntu with Windows 8 Boot manager
8624
Removing Ubuntu from a dual-boot setup with Windows
60113
System boots straight into Windows without showing GRUB
78139
No grub menu after Ubuntu install, booting directly into Ubuntu