Today is the big day. If you have reserved and nothing happened today you can go here and download the version you need: http://www.microsoft.com/en-us/software-download/windows10 I successfully upgraded my 3990K Intel rig to 10, and am posting from the Microsoft-Edge browser, which apparently will not CCP into this form so I hope the web address I manually typed for you works. Interesting to not that the upgrade process seemed to hang for almost 30 minutes, I was quite sure I had broke the puter jumping in so early. It’s different, which is bound to annoy some people, but familiar enough ground for most people that upgrade early. I’ll post any issues I have with my build as I come across them. Proceed at your own risk.