It is a well-known fact that support on Windows XP has been dropped as of April 8, 2014. Many folks, including myself, are still using the OS on certain computers. So far, I have had no issues with my XP installations. I did have an issue with my installation of Security Essentials, however. This issue appears to be very common amongst the Windows XP users. It appears that through Microsoft update, Microsoft has made your Security Essentials look more like a threatening virus then a product that is supposed to protect you.