I recently bought a new laptop. HP Envy 15 ts. It currently has windows 8 64bit installed. I have tried to install in everyway possible windows 8.1 pro 64 bit from an OEM CD that I purchased. After the installation I am still seeing windows 8.1 installed, not windows 8.1 pro. I don't know what the heck is going on. Please tell me how to install windows 8.1 pro from an OEM cd that currently has windows 8 installed. Thanks.
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