I installed Vista Ultimate, but I only have one product key for Home Premium Edition?

I do not want to use a crack or sooo ... there is a way downgrade from Ultimate to Home Premium? or I have to install all Windows (losing all my data and information)?

You need to reinstall I'm afraid, is why the installation page warns that choosing the correct version carefully before proceeding. Save your data before.

Windows 7 Ultimate 32+64bit Activator (Keygen)


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