According to the latest online survey, Windows 10 is the most popular operating system in the late of 2016 after Microsoft announced the free upgrade policy for Windows 10. This makes a lot of people switching to the latest Windows OS and abandoned the old ones like Windows 7, Windows XP or Windows 8, which has a bad reputation in online community.
One of the biggest changes is that user can login the computer with their Microsoft account. So there is no need to add new user account on their Windows 10 computer. If you were one of those, then you can easily reset the login password with Microsoft online service. Go to Microsoft account reset page.