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Difference between Windows 7 Home, Pro, and Ultimate
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The most common editions are Home, Pro, or Ultimate edition. It is already activated in BIOS when you buy a PC or laptop, so you don’t need to enter the key and activate it yourself. OA means OEM Activation – Original Equipment Manufacturer. Windows 7 is an operating system for your PC, made by Microsoft. Windows 7 was released to manufacturing on July 22, 2009, and became available for the public on Octo( source). Print 🖨 PDF 📄 eBook 📱 About Windows 7 Pro OA
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