Possible Duplicate:
Switch between Ubuntu and Windows 7
How do I and Can I switch between windows 7 and Ubuntu 12.04 at random? I have downloaded Ubuntu and WUBI. I am very new at this and just want to make sure I don't lose my windows OS setup. can I just boot from a disc whenever I want to use Ubuntu? I don't want to start the WUBI process and then not be able to get back to Windows when I want and vice versa.