A Microsoft account (formerly known as a Windows Live ID) is a single email address and password you use to sign in to various Microsoft products and services. If you have a device that runs Windows 8 or Windows RT or you use a service like Hotmail, Outlook.com, or Xbox LIVE, you probably already have a Microsoft account.
Use your account to connect your device in the cloud—a virtual computing network of services and infrastructure that can be accessed from anywhere at any time. You can share content, buy and download apps from the Windows Store, and track your purchase history from Microsoft online.
For more information, see the frequently asked questions on the Help & How-to page.
