Microsoft quietly extends consumer support for Windows 7, Vista
Available service packs for Windows XP, Windows Vista and Windows 7 product currently supported this change’s customers are subject to up to 10 years of security update provides will regardless of the Edition.
Support end date for Windows XP, Windows Vista and Windows 7 are as follows:
Windows XP 4/8/2014
Windows Vista 4/11/2017
Windows 7 1/14/2020
This month, with almost no fanfare, Microsoft has revised its support policy for consumer versions of Windows so that they qualify for extended support as well. If you go to the Support Lifecycle home page and search for a product family, you get new results for Windows Vista and Windows 7 that include Extended Support end dates for consumer versions of both products.]
Additional info in above link.
Dell Vostro 460, 10 GB RAM, Win 7 Home Premium x64, SP1, Firefox, Palemoon, IE10