The version of Vista that gets installed depends on the product key that you enter. This means a single Vista CD can be used to install the various editions. One question that immediately arises then is “how can I upgrade my existing version of Vista to a version that has more features?”.
The answer is to change the product key through the System applet within the Control Panel. Under the Windows activation section, click the Change product key link. The window that appears will allow you to enter a new product key and thereby upgrade to a different version of Vista.
[tags]vista, product key, change product key, changing product key, windows, diana huggins, microsoft[/tags]