Tips - Windows 7 upgrade with Windows Anytime Upgrade Feature

I found that exist Windows Anytime Upgrade Feature to automatically upgrade from Windows 7 professional to ultimate. 

here they are article that well explain procedure that you can use if you purchase Microsoft Serial number

http://windows.microsoft.com/en-us/windows7/how-to-get-a-windows-anytime-upgrade-key

http://www.sevenforums.com/tutorials/95744-windows-anytime-upgrade-how.html

rom Windows 7	Anytime Upgrade to Windows 7
Starter	Home Premium, Professional, Ultimate
Home Basic	Home Premium, Professional, Ultimate
Home Premium	Professional, Ultimate
Professional	Ultimate

Windows Anytime Upgrade is only available for online purchase in Australia, Belgium, Canada, Germany, France, Italy, Japan, the Netherlands, Spain, Sweden, Switzerland, the United Kingdom, and the United States.

Here they are some screenshots.