This is the link for those using XP and there are additional links for those using Vista and other operating systems. You can find this update under Windows Update as well as "optional'. At this time is has not been included as a security update that is automatically pumped out to the PCs via Windows Update, so you may want to visit the site and look for additional information. This is especially important to those using Outlook to have your emails time stamped correctly in the future. We have more time with Daylight Savings Time, thus the pc will need to be updated to reflect the new times to automatically make the change for you. If you are on a business network connected to a server, your IT administration will more than likely make the adjustments for you when rolling out system updates.