I downloaded the 12.04 and used Unetbootin. Then when I tried to install, it asked whether to upgrade, so I upgraded (from 10.04). I think it didn't format my file system, as some of the apps are intact. But I doubt, if the installation has taken more space in addition to previous 10.04.
But now, after upgrade, loading apps have become very slow and also when I browse the youtube, the video and audio isn't smooth. I feel the upgrade has bloated my system.
Any solutions pls?