Whew, It wasn't a dell, was it? When I was on the road for three years, I threw my Dell across the Hotel Suite everytime, and it still boot so I had to work!
Let us start by asking what make/model/configuration?
Have you youtubed the fix yet? You do understand most people will brag about their accomplishments regardless of what practices they are using to show you the wrong way to do it!
What make and model, please?