What is the recommended way to upgrade: full reinstall or over current system?
14820
Is a clean install better than upgrading?
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?
55725
Can I install the free Windows 7/8 -> 10 upgrade on a new empty drive?
125237
What's the best way to completely remove everything from a computer, without re-installing?
19972
Reinstall of OS after CPU Upgrade needed?
28535
How I do a system restore?
120229
Understanding various update and upgrade commands
37628
Can I upgrade from Windows 7 32bit to 64bit without formatting?
9901
How to upgrade from 18.10 to 19.10, using the command line?
117029
Can the previous version overwrite the currently installed app?
126135
Reinstall Windows 7: OEM or Standard?
63514
How do I decide what version of Ubuntu to install?
473
I installed an alpha or beta, am I up to date with the final release if I keep upgrading?
113056
How to upgrade from 12.04 to 12.10 using CD?
4660
Should I be offered the option to upgrade to 18.04.1?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
31506
How do I update Ubuntu manually?