Over the last couple of weeks, Microsoft began advertising Windows 10 to existing Windows 7 and Windows 8.1 users. Those who are regularly up to date via Windows Update should now have the option to reserve a copy of Windows 10 via the system tray, which will put you in for pre-downloading Windows 10 before July 29th. Earlier this week, Microsoft released another update for Windows 8.1 users, which puts reserving Windows 10 at the forefront of Windows, literally during the Windows 8.1 setup process and even before reaching the desktop.
This new update allows users to reserve Windows 10 within the OOBE (out of box experience) when first booting a new install or setting up a newly purchased PC. The ability to reserve comes after you setup your account, but before you even reach the desktop. This means that new users who recently purchased a Windows 8.1 device simply can't miss the chance to reserve Windows 10. This also appears if you clean install Windows 8.1 with November Update roll-up and are connected to the internet.
Of course, as with the desktop version of the Windows 10 upgrade, you can decide to skip reserving Windows 10 until the time is right for you. It's interesting to see how hard Microsoft is now pushing Windows 10 to existing users. Consumers who are purchasing Windows 8.1 devices will now be offered the free upgrade even before they finish setting up their new PC. So, have you reserved your free copy of Windows 10 yet? If not, why not?source:winbeta