Minecraft Launcher will not start.

My father was trying to re-download Minecraft because it will not play. When you hit "play" it will load up the minecraft launcher and stay a white screen for a few seconds like when it loads before a crash error appears saying "GAME CRASH - An unexpected issue occurred and the game has crashed. we're sorry for the inconvenience."
How can this issue be fixed? We had deleted Minecraft and re-install it 3 times and the results are the same.