Microsoft ended support for the XP operating system on April 8, 2014. Even though users are still able to use XP computers, it is important to keep in mind that the end of support opens up potential security and compatibility issues. The operating system will not be updated to protect against new virus threats or fix any software glitches. Users should be cautious when browsing the internet or opening email attachments, as these are common ways viruses can be downloaded. New software development may not be tested on the older operating system, so users may experience compatibility issues when working with newer software.