Is this legit? They're sold by Amazon.com but has the shipped from Amazon.com Services LLC. I saw other posts say the serial number is normally included; it wasn't. Mixed reviews as well… :
Amazon.com: Microsoft Windows 8.1 Pro Pack (Win 8.1 to Win 8.1 Pro Upgrade) - Key Card : Software
Microsoft Windows 8.1 Pro - Full Version : Amazon.com.mx: Software
Amazon.com: Windows 8.1
Amazon.com: Windows 8.1 Pro Product Key for 32 or 64 Bit Operating System
Amazon.com: Windows 8
Amazon.com: Windows 8.1
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Microsoft Get Genuine Kit para Windows 8.1 Pro - Paquete de Licencia y Soporte Oem, 64-Bit : Amazon.com.mx: Software
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Amazon.com: Windows 8
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Amazon.com: Windows 8.1 Key
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Amazon.com: Microsoft OEM System Builder |AMD, Windоws 10 Pro | 64 BIT | Intended use for new systems | Upgradable to Windows 11 : Software
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Amazon.com: Windows 8
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