How to install a verson full Windows 7 with a upgrade key

I have an Emachines computer with Windows XP and I've upgraded to Windows 7 Professional.  This machine crashed and I replaced my C drive with an SSD.  I downloaded a full version of Windows 7 Professional and a clean installed on the SSD drive.  I put my key Windows 7 Professonal and he told me I couldn't use a key from the full version on an improved version of Windows 7.  My SSD supports Windows XP not, so what I do?

Have you tried to restart by phone?

How to activate Windows 7 manually (activate by phone)
 
1) click Start and in the search for box type: slui.exe 4
 
(2) press the ENTER"" key.
 
(3) select your "country" in the list.
 
(4) choose the option "activate phone".
 
(5) stay on the phone (do not select/press all options) and wait for a person to help you with the activation.
 
(6) explain your problem clearly to the support person.
 
http://support.Microsoft.com/kb/950929/en-us

Tags: Windows

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