I'm a new person at Linux and am running Linux mint 15 cinnamon from an 8GB sandisk pendrive. I cannot dualboot it with windows until my friend (who is a genius at computers) backs up my windows (apparently). The thing is, I cannot save what I have done on it. for example, if I install drpython on my Linux and switch off my laptop, the next time I switch it on, it's all gone. can anyone tell me how I can save what I have done? Thanks in advance.