In less than a month, on April 11th, 2017, Windows Vista will officially lose support. While Vista only has .78% of market share currently, and continues to drop, there are still users that continue to run the old operating system.
Personally, Vista was one of my favorite Microsoft operating system releases. I upgraded to Windows 7 as soon as I could, but Vista was definitely a strong OS that did great. Farewell, old friend. 
After April 11, 2017, Windows Vista customers will no longer receive new security updates, non-security hotfixes, free or paid assisted support options, or online technical content updates from Microsoft. Microsoft has provided support for Windows Vista for the past 10 years, but the time has come for us, along with our hardware and software partners, to invest our resources towards more recent technologies so that we can continue to deliver great new experiences.