Windows 10 has been offered as a free, optional upgrade for Windows 7 and 8.1 users until now. The older operating system would have to get the command from its owner to flag updates and start downloading them.
We've been hearing from Microsoft for a while now that it's preparing to make a big change in the way it distributes its new operating system. 
So, starting today, February 2, 2016, six months after the official release of Windows 10, the new operating system has started to be promoted as a recommended download on Windows Update. This means that the update is enabled by default so that your system can start downloading the necessary installation files.
However, although the download of Windows 10 will be automatic, Microsoft guarantees that it will still ask for your permission before proceeding with the installation.
Unless, of course, it makes another “mistake” that has been repeatedly observed.
The company, faced with its goal (1 billion operating system installations by 2017), does not hesitate to use unorthodox methods.
Of course, in these ways it may manage to increase the number of computers running Windows 10, but it creates a lot of resentment against the company's practices.
The very aggressive way of promoting Windows, as well as the massive collection of data for the "good" of the end user, has made many people unwilling to install the new operating system.
For those who do not wish to upgrade, from today they should carefully check which updates they download to their system. Of course, there are always third-party applications that prevent the upgrade.
