This workaround hack to the XP Registry will trick Windows Update into thinking that your XP is a Windows Embedded POSReady 2009. POS stands for Point of Sale. Microsoft will support Windows Embedded POSReady 2009 until 2019 but Microsoft strongly urges you not to use these updates as they are not tested against Windows XP. By NOT getting security updates specifically designed for XP you run a risk of believing you are patched when you are not and you may introduce problems due to incompatible code installed with the patch. Microsoft suggests that the best way to protect your systems is to upgrade from Windows XP to either Windows 7 or Windows 8.1.
For more information, visit:
http://www.darkreading.com/microsoft-ignore-unofficial-xp-update-workaround/d/d-id/1269236
