Use your installation disk. You should not need anything else. Use the tutorial to make things easy on yourself. Clean Install Windows 7
When I installed my Win 7, I did not have any trouble as everything was on the Win 7 Install disk. Let us know how it works out. == If you have any files that you need to keep, back them up as a clean install erases everything on the Hard Drive. == As to your question, "Is it Easy"? It really is, just follow the tutorial step by step and it will be easy. One thing, when you come to a step in the install, it will ask you to input your Product Key, don't do it. Wait until everything is good until you do that. You will have 30 days before you need to put in your Product Key.