"This computer currently has no detected operating systems" when installing
11323
"Install alongside" option missing. How do I install Ubuntu beside Windows using "Something Else"?
131338
How do I deal with unknown installation error code -505?
66633
Booting from USB and not installing
93781
WINDOWS 10 - Error Windows Update 10 = Error in phase " SAFE_OS " with the operator error with " BOOT "
147557
"The 'grub-efi-amd64-signed' package failed to install into /target/" during installation of Ubuntu 18.04
58548
Getting a black screen when installing or Live booting Ubuntu (any version) in my laptop
12237
Attempted Installing Ubuntu on Windows 8.1 UEFI, Confused about booting in UEFI, Legacy Mode
2098
How can I install Ubuntu without removing Windows?
26685
Tried to install both Windows and Ubuntu, now neither will boot
151045
How can I determine the installed edition of Windows XP if the OS does not boot up?
46173
Can't boot Windows 7 after installing Ubuntu
672
Unable to boot into Windows after installing Ubuntu, how to fix?
55852
"No root file system defined" error while installing ubuntu
73357
Every package "has no installation candidate"
19972
Reinstall of OS after CPU Upgrade needed?
46790
Cannot boot OS. Black Screen
51232
Boot error > no such device: grub rescue