Unable to boot Ubuntu after updating from Windows 8 to 8.1
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
1285
My computer boots to a black screen, what options do I have to fix it?
122378
Can't boot Windows Vista after installing Ubuntu
55300
Can't boot from Ubuntu USB stick
32643
How to create or recover Windows Bootloader after deleting Ubuntu boot drive
124743
Need Help Fixing Grub after Installing Ubuntu 13.04 x64 Alongside Windows 8 on a Lenovo IdeaPad Y400 with UEFI
3313
How do I use EasyBCD as bootloader with Windows 8 and UEFI?
148973
How to restore Windows boot loader after removing Ubuntu
24435
Unable to boot ubuntu 13.04 alongside windows 8
939
How to reboot into Windows from Ubuntu?
10334
Stuck in Ubuntu Booting Screen
51232
Boot error > no such device: grub rescue
68120
Will upgrading Windows 8 to 8.1 affect Ubuntu?
3847
How to boot WUBI installed Ubuntu within Windows 8?
70149
Is it possible to boot Ubuntu using the Windows bootloader?
151579
Interrupted upgrade from 15.10 to 16.04, Ubuntu boots into black screen
2980
Can't start ubuntu-desktop after upgrade to 18.04