What is Windows Live Essentials?

Windows Essentials (formerly Windows Live Essentials and Windows Live Installer) is a suite of freeware applications by Microsoft that aims to offer integrated and bundled e-mail, instant messaging, photo-sharing, blog publishing, and security services. Essentials programs are designed to integrate well with each other, with Microsoft Windows, and with other Microsoft web-based services such as SkyDrive andOutlook.com, so that they operate as a “seamless whole”