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Some questiosn about a key

Last response: in Windows 7
June 2, 2010 7:38:08 PM

I have a full ( not upgrade ) genuine key for windows 7 ultimate. Can i use this key to upgrade from vista home premium, or is it only for clean full install? Also i don't have a CD, so what other way can i get it.

Thanks in advance for the help.

More about : questiosn key

a c 232 $ Windows 7
June 2, 2010 7:46:33 PM

The short answer (according to MS) is yes. You can upgrade from Windows Vista Home Premium to Windows 7 Home Premium or Ultimate.

If you have the license from a legitimate source, you should also have access to the media, even if you purchased the license on-line, you should have been able to download disk image to burn to DVD.

Be sure to keep in mind you can't upgrade from a 32-bit to 64-bit version or vice versa.
June 2, 2010 7:49:01 PM

ok but i can use a full license to upgrade right??
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a c 232 $ Windows 7
June 2, 2010 7:55:01 PM

Yes. If you want to confirm, go to and look at the Windows 7 page. You should be able to confirm easily. In general, you can upgrade from a lower version of one Windows product to a higher level version of the next Windows product, with some exceptions.

From a MS support forum, I found this:

If you are running consumer editions of Windows Vista such as Home Basic or Premium, you can only upgrade to either Windows 7 Home Premium or Ultimate.

Also, you cannot do downgrades, which means, if you are running Windows Vista Ultimate now, you cannot downgrade to Windows 7 Home Premium. You must do logical upgrades:

Windows Vista Home Basic > Windows 7 Home Basic, Premium or Ultimate
Windows Vista Home Premium > Windows 7 Home Premium or Ultimate
Windows Vista Business > Windows 7 Professional, Enterprise or Ultimate
Windows Vista Enterprise > Windows 7 Enterprise
Windows Vista Ultimate > Windows 7 Ultimate.
June 2, 2010 8:00:50 PM

ok cool thanks