How to change from KDE to GNOME or vice-vesa?
Answer:
I think you put this question in the wrong category since I assume you are talking about the GUI's KDE and GNOME. But to answer your question, I assume you want to run KDE or GNOME on Linux. Well, there is no need to change. You can actually install both (just use your the package management tool in your linux distro to install both, for example you would use the apt tool in Debian). When you install both, you can choose which one you want Linux to boot. I have a friend who has KDE, GNOME, and Fluxbox all installed on one computer. Then he chooses whichever one will work best for whatever he wants to do. If you have trouble, just find the documentation for either GNOME or KDE off google. You shouldn't have any problems with instructions since both GUI's are very well documented. Good luck.