Windows 2007 is a computer operating system with a graphical user interface (GUI) that uses icons and windows to help users interact with programs and files. The desktop interface features a start menu for launching programs, folders for storing files, and icons for common programs. Users can open and close programs, documents, and folders by clicking icons and buttons with a mouse. They can also resize and move windows around the desktop. Keyboard shortcuts provide alternative commands for common tasks like opening the start menu or minimizing windows. Flash drives and network folders can be used to save and transfer files between computers. Files and folders can be organized, renamed, copied, moved or deleted through drag and drop or right click menu options.