It means that you are currently using a file or files on the hard drive you are trying to format. If you are trying to format your primary drive you will need to boot to a boot disk - not the C: drive. For most versions of windows you will will need to make the boot disk(s) (an option under My Computer) and boot to those disks rather than your hard drive.
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.