Tried Windows 10 and not satisfied? Although the Microsoft states that its new operating system is the best version of Windows, there may be many who disagree, or love the good old 7 too much.
If you try Windows 10, with the free upgrade offer, and you decide that Windows 7 or 8.1 is best for you, you can turn your old operating system very easily.
Microsoft enables you to quickly return to your favorite operating system in Windows 7 or 8.1 if you do not like Window 10, directly from your operating system settings.
Please note that the downgrade uses the Windows.old folder that automatically creates when Window 10 is installed.
From Start menus, follow the path: Settings / Updates and Security.
There you will find her choice recovery.
From the selection shown below picture with a single click you will start the downgrade.
Once you click this option, Microsoft will prompt you for the reason you want to change operational. 
Let's say the downgrade process takes a while and you will probably lose your installed applications.
All your personal files will be kept as they were.
