Dual boot broken after BIOS repair
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
129105
Can't boot, no grub, "alloc magic is broken"
142224
Computer wont boot to windows
23908
How can I reinstall GRUB to the EFI partition?
83727
Grub rescue no such device, also cannot access BIOS
90466
Can not boot Windows on Legacy BIOS after installing Ubuntu on UEFI
46763
HP Proliant Gen8 boot failure after bios upgrade and processor upgrade
147559
Dual boot pc boots directly to ubuntu instead of showing grub menu
101728
Boot CD won't boot with a "x86-64 CPU,but only detected an i686 CPU" error
79692
Grub rescue prompt, repair grub
115558
After Windows 10 upgrade I can no longer access BIOS
33376
Boot camp install of Windows 7 issue, no bootable devices
96248
Cannot Restore Grub After Windows 8.1 Upgrade
71816
How to make UEFI bios start GRUB, not Windows?
19000
Is it possible to update BIOS to UEFI?
48388
Ubuntu boots from USB but get GRUB rescue after installation
105222
Windows 8 won't boot via GRUB after installing Ubuntu with boot-repair