Every Windows product has a life cycle. The life cycle begins when a product is released and ends when it's no longer supported. Knowing key dates in this life cycle helps you make informed decisions about when to update, upgrade or make other changes to your software.
Windows 7 Support will end January 14, 2020.
Windows 8.1 Mainstream support will end January 9, 2018
Windows 8.1 Extended support will end January 10, 2023
