Windows Embedded POS Ready 2009, which is a slimmed down version of XP is supported until april 2019
http://www.microsoft.com/en-us/download/details.aspx?id=11196
https://www.youtube.com/watch?v=JP_n7V5AtKM
look about 1.5 to 2/3 down the page and you will see windows embedded POS ready 2009 supported to april 2019.
https://www.microsoft.com/windowsembedded/en-us/product-lifecycles.aspx
http://www.microsoft.com/en-us/download/details.aspx?id=11196
https://www.youtube.com/watch?v=JP_n7V5AtKM
look about 1.5 to 2/3 down the page and you will see windows embedded POS ready 2009 supported to april 2019.
https://www.microsoft.com/windowsembedded/en-us/product-lifecycles.aspx