Microsoft has started pushing Windows 10 to the PCs that have got Windows 10 upgrade reserved, starting today and counts its as the 10th reason to upgrade to Windows 10. If you haven’t reserved Windows 10 upgrade for your eligible PC, you may like to watch 9 videos posted by Microsoft that give nine other good reasons to upgrade to Windows 10. Though,the changes that Windows 10 brings is difficult to fit in nine videos and you may like to check our coverage of Windows 10 for more. Time to watch the 9 official videos from Microsoft now.