Windows 7 startup black screen?

Looks like to me that you have got a corrupted OS file especially if after doing a repair and it's then OK afterwards. Another thing to try is to do away with the log on screen by removing the log on password. Go into User Accounts?

Change Password? Where it says enter new password just press Enter and again to confirm. Leave the "Hint" blank?

Then click on Create. Your computer then should boot straight up without needing a password. Personally I can't see the point of having one if your the only one using it!

I think there are virus so you can use update antivirus.

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.