Downgrading 18.10 to 18.04 - How can I only purge the OS and not delete my personal files?
2136
How to roll back Ubuntu to a previous version?
157525
How to delete old versions of same packages from a Local Repository?
51264
How do I uninstall Ubuntu from a computer?
36257
Is there a way to truly delete all deleted files?
28937
How do I uninstall Ubuntu?
9901
How to upgrade from 18.10 to 19.10, using the command line?
37535
Safest way to remove Ubuntu from dual boot PC
89166
How to downgrade Kernel
43313
What is the advantage of using sudo apt-get autoremove over a cleaner app?
107978
Is it safe to remove the extra local disk after upgrading to Windows 10 version 1803?
79619
How to delete files from Ubuntu One?
126343
How to downgrade a package via apt-get?
135547
Downgrading from OS X 10.9.2 to 10.9
54488
How do I delete a folder that's in use?
146297
What are the disadvantages of removing the application directories instead of using uninstallers?
109851
how to remove other linux os and stay with ubuntu only
10709
Can i upgrade ubuntu without losing my apps and files?