I have just un packed my new raspberry pi bundle with Noobs 8gb distribution sd card. I have connected everything up correctly inserted the sd card and powered up. It then asks me which distro I want to install. I selected raspbian as recomended. It then gives me a warning that the sd card will be over written. Do I need to backup the sd card before proceeding? How can this be done? Can I copy the contents of the card to cd/dvd/hard disk using Windows XP?
Thank you for any assistance.