Mainstream support for windows vista ended in April of 2012 but Microsoft will be ending its extended support of the operating system on 11/04/2017.
If you are using windows vista now is most certainly the time to upgrade your computer or operating system to a much more fluid and user friendly version like windows 7, 8 or 10 support for these operating systems is due to end in 2020, 2023 and 2015 respectively.