How can i get beck my window vista from window 7 ?

A lot of computer stores will help you with this. See if you can take it to the store you bought your windows 7 from. Tell them you don't like it and you want your money back and you need to get it out of your computer. I have a friend that did this once for a program he did not like. The store fixed his computer for free and gave him his money back and said sorry. It did a few hours to do so he went shopping and had lunch and then they called him to come and get it. He tipped the kids 10 bucks for helping him. Now the kids from the store come to his house when he screws up his computer. and he pays the guy $15 or $20.00 and hour. The same store guy even boosted up my ram that he bought at an employee discount and put it my computer. I gave him a 50 for his pocket for his help.