How to Recover Windows 10 to Windows 7/8.1 Microsoft has launched Windows 10 worldwide on 29 July, 2015 and will provide a free upgrade for existing Windows users. If you are running a Windows 7 or Windows 8.1 PC, you possibly already start to experience the new operating system. As we know up to now, Windows 10 has a good compatibility with most of popular applications, but not all. Although you may easily tend to be tempted by the free logic, we’d like to remind some users not to hurry up for the upgrading. 1. Game player. It takes time for all game vendors to adjust their products to reali