Ubuntu not working need new os?
918
How to remove Ubuntu and put Windows back on?
32903
How can I install Ubuntu 13.04 + without USB, CD, DVD or Net? (hard drive only)
87551
How to repair grub?
143622
Ubuntu doesn't boot!
15124
Can't boot Ubuntu or Windows 8 after Ubuntu 64-bit install on Samsung series 7 Windows 8 laptop, error "All boot options are tried."
154040
How to install Ubuntu on a laptop with Windows 10
11412
Is Ubuntu compatible with my hardware?
39918
How to start a new Linux distro?
115017
Black screen after clicking "Install Ubuntu"
15139
Blank Macbook pro with no operating system. Trying to fix
113006
Grub rescue after removing Ubuntu?
1659
What hardware does Ubuntu Touch support?
63772
I can't boot into a usable system after updates. What should I do?
46790
Cannot boot OS. Black Screen
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
39651
GRUB Help and Reinstalling Ubuntu
79916
Just installed ubuntu 14.04 but after restart it wont boot