How do I switch from Ubuntu 16.10 to Ubuntu 16.04?
2136
How to roll back Ubuntu to a previous version?
31892
New "Ubuntu Software" not working (16.04)
113056
How to upgrade from 12.04 to 12.10 using CD?
74457
I want to completely replace Ubuntu with Lubuntu
87236
How to upgrade Ubuntu 12.04 to 13.10?
13154
How to change boot priority?
153431
How to set unity as default after installing ubuntu-gnome-desktop in Ubuntu 16.04?
54755
No option to switch from xorg to Wayland on Ubuntu 17.10 login
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?
27595
How do I install and switch to the Unity 2D desktop?
21524
I want to Change ubuntu 14.04 from 64 bit to 32 bit
133002
Can I install two Ubuntu versions on the same machine?
107548
Where can I download Ubuntu 16.04?
16504
How to change ubuntu install from legacy to uefi
29358
How do I replace Windows with Ubuntu, yet keep my data?
103103
How do I switch to a closer Ubuntu mirror?
30928
How do I add swap after system installation?