I just got a new netbook and I'm setting up operative system configuration. It came with windows 7 starter but I installed dual boot ubuntu 12.10. I did some stuff on the ubuntu version of the system that makes me not want to use it at school. No illegal stuff or porn or anything. Basically just writing on a forum about my feelings. Nothing extremely advanced, but I'm just not comfortable with previous searches and stuff popping up while we're doing groupworks. We do a lot of group work so I will have to solve it. I'm considering a disc wipe and reinstallation of the ubuntu installation.
Ubuntu was installed by download an iso from inside windows, then put on an usb drive and rebooted and installed alongside windows. I did not do any fancy configuration about swap spaces or partitions and do not feel I have control over it or understand it. When I start, I get to choose if I want to boot up as windows or ubuntu. It automatically chooses ubuntu. Also, I would like to change this so that it chooses windows by default.
My question is, is it possible to reinstall ubuntu without having to reinstall Windows 7? Will such a procedure make it "safe" to use ubuntu again? I'm not interested in a wiping of free disc space or any goverment-level confidentiality. I just want my ubuntu partition cleared, from occasionaly peeping curios eyes in school, not having previously visited websites or previously written documents popping up accidentely. If I remove ubuntu from my hard drive, and then install it again, will a lot of the stuff still be there? I really would like not to format my hard drive because I have stuff on the windows part of the system that I use. Also, what way of unistallation will be good for my needs? I've never uninstalled ubuntu before.
thanks for your help