QuoteOnly a couple of days are left until Microsoft's "everyone, gather around and grab a free copy of Windows 10" offer expires.
Without getting into the "should you, or should not you" argument again when it comes to the upgrade offer to Windows 10, you may wonder if there is a way to grab the license of Windows 10 without actually using the operating system right away.
There are good reasons for upgrading to Windows 10, and there are reasons not to upgrade. Some users might want to grab the license while it is free, and continue to use another version of Windows for the time being.
The main idea behind the train of thought is that you could upgrade to Windows 10 at a later point in time without having to pay money for it.
http://www.ghacks.net/2016/07/25/reserve-windows-10-without-using-it/