GRUB does not list an option for windows 8
35620
Windows 7 entry missing from grub after 12.04 installation
35061
Why is there no option to install ubuntu alongside windows 10
40585
What is the most reliable way to get a Windows 8/8.1 computer into Advanced Startup Options menu?
141406
How can I add an entry for Ubuntu to the Windows 7 boot menu?
27518
How do I boot Windows 8 into Safe Mode?
78405
I can't get grub menu to show up during boot
147559
Dual boot pc boots directly to ubuntu instead of showing grub menu
121308
How do I get the GRUB menu to show when starting my dual-boot system?
20144
Prevent GRUB from showing up by default?
103413
GRUB doesn't show Windows 10
87551
How to repair grub?
17245
Add Windows 10 to GRUB OS list
110305
Why is Grub menu not shown when starting my computer?
33870
Windows & Ubuntu dual boot.No menu to choose OS?
142438
Grub menu working but hidden, can't make it visible
58880
How to remove or hide the GRUB boot menu?
84732
How to get GRUB to be the default bootloader instead of Windows Boot Manager on a UEFI laptop?