The program is saved in the Home directory, usually in the Downloads file.
By itself, downloading Ubuntu will not delete anything. However, if you tell the Ubuntu installer to erase your hard drive before installing, you will lose all your programs.
Yes.
Ubuntu
disk space analyzer
PowerISO is not supported on Ubuntu. There are a multitude of programs that can do the same thing as well as or better than PowerISO, available for free in Ubuntu's repository.
Ubuntu is a community effort and does not have a single maker. It is a distribution that is an off-branch from Linux. Google for "Ubuntu" and "Linux" for more information.
Out of the box, Ubuntu does not support ANY Windows programs, released by Microsoft or not. If you install Wine on Ubuntu, With Wine installed, you can run Visual Studio .NET 2003, but no later version.
Most games are designed to run only on Windows PC's. In order to user some Windows programs on Ubuntu, you will have to utilize Wine.
GNOME Disk Usage Analyzer
If you have installed ubuntu with windows you uninstall it in the add remove programs.
Ubuntu comes precompiled. Although you could compile it from source, that would take days, and would be pretty silly. To compile programs on Ubuntu, first "sudo apt-get install build-essential", then run "./configure" and "make" in the directory where you have the source code.
So here are your options:Use WINE to run some programs from Windows. (May not always work)Buy and use CrossOver Games to run Windows games on Ubuntu LinuxOther than that, Ubuntu has some awesome games.