Windows 7 support ending in January 2015
support.microsoft.com
support.microsoft.com
Windows 7 will continue to be supported in "extended" support with security issues fixed regularly and paid phone/online support until January 2020.
Basically, after January you will only get paid support (if you bought that) and security fixes, up to January you could get other stuff as well - not sure what that entails - the only MS support I've ever encountered are security fixes.