here is another link that might help
"Upgrading" from Windows XP to Windows 7 in 5 Steps
You may have heard that there’s no direct upgrade path from Windows XP to Windows 7. That’s true. You can only upgrade from Windows Vista to Windows 7. For Windows XP users, that means one thing: it’s time for a fresh install.
Don’t be afraid – despite what you may have heard, it’s not really that hard. It just takes more time. If you’re about to embark on this adventure yourself, check out the steps below for what I think is the easiest and most painless way to go about doing this.
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