Microsoft has become increasingly aggressive to push Windows users to upgrade to Windows 10. Windows 7 and 8.1 users now see a pop up on their computers that displays only two choices for you: Upgrade Now ‘OR’ Upgrade Tonight. Microsoft silently started pushing Windows 10 installation files on PCs running Windows 7 or Windows 8.1 over a month after its launch, even if users have not opted into the upgrade. Microsoft has left users with little choice over whether to upgrade their systems to the latest Windows operating system.
Source: https://thehackernews.com/2015/12/microsoft-nasty-windows10.html