i want to install new gnome/kde in special folder and be able to remove, ??any idea?
 

i mean i want to install new gnome/kde in a special folder/directory and boot up new gnome/kde.
Lately, if i don't like the latest version of kde/gnome, i want to be able to remove the whole latest gnome/kde, and boot up my previous gnome/kde.

anyone know how to do it?? @_@ if you know , plz type full steps or give me a link which teach how to do it.

i did research in google, but these kind of question rarely post on the web.
please help me.

i wanna do this because if my gnome is died, i can remove it without affect my previous gnome/kde. so i still can boot up.
Then i want to install the very new gnome/kde. i can remove it and install the same way. so i guess it's convinence.

:( :( :(

@_@??:(