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How can i retrieve a lost Win 7 product key #? Upgraded to Win 10 B4.
I lost my Windows 7 product key. Changed my HDD and clean installed Windows 7. Looked everywhere for the activation code but there is no hope in finding it. What can be done? My laptop manufacturer is useless. I'm not sure if it would make a difference but back when Windows 10 first came out and they where sending this "upgrade now for free" messages, i upgraded. But about 3 weeks later, i downgraded back to Windows 7.