Windows 10 Home Operating System: Stay productive with a new web browser that lets you draw notes directly on a web page, and with Cortana, a personal digital assistant that helps you browse for information, write emails, and more. When it's time for gaming, stream your favorite Xbox One games directly onto your Windows 10 PC, laptop, or tablet.
I needed to install a fresh windows 10 on my computer as the old one was a 32 bit upgrade to the original 32 bit windows 8.1. I replaced my fried 32 bit motherboard with a 64 bit capable one and wanted to install a 64 bit copy of windows 10. This did the trick, my PC is running smooth and stable.