I upgraded my memory in my computer, and now my computer won't boot up at all?

If you have a sticker on the side of your pc with the w7 product key then all will be well. Download windows 7 iso (google it) and burn to disc. Change your components.

Load the w7 iso and follow the instuctions, the new win7 install will recognise the old win 7 install and will rename these files as "old" automatically. Enter the product key when asked it will take an age for all the updates to happen ive done this many many times!

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.