No you won't but its always a good habbit to create the backup of c:\downloads c:\documents and any important files and stuff on desktop as they belong to c:\ (root) as far as I know repairing . Upgrading won't lose anything , but again bro back it up.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.