For those who are for the purchase of Windows 7 tips you can directly windows 7.Many things that need to be improved windows 7 include:    1.Keep the current installation of Windows XP on the first update for Windows Vista, and then upgrade to Windows 7  and do not a copy.
2.Vista update only one copy Windows 7 also stupid that the nature of their user profiles and preferences.
4. only thing to do is to reinstall your applications  and  tool for this is Windows Easy Transfer for Windows 7 is now available for Vista and improved Windows 7.
5. The tool is the user profiles and settings for Windows XP and transfer to your new installation of Windows 7th and install all new applications is still a job.Unfortunately there is no upgrade option is available from Windows XP to Windows 7