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Windows 10 product key

medcomputers
medcomputers asked
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Last Modified: 2018-03-13
I am trying to install my "free" Windows 10 upgrade on a Virtual Box partition, upgrading from an up to date legitimate version of Windows 7 Ultimate. I am now constantly being asked for my product key and have tried my Win 7 Ult. key which does not work. I receive the error code: 0xC004C003. My only other option is to buy a copy of Windows 10 at £189.99. Can anyone tell me where I might find a Windows 10 product key so that I can upgrade for free as Microsoft keep advertising?
Many thanks
Matthew
I also see that my default screen resolution, 1920 x 1080, under Windows 7 is not available. Only lower resolutions. Is this a Windows 10 glitch?
Thanks
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