What is a Microsoft account?

One sign in for all the separate Microsoft Services you use such as Outlook email, Windows backup on your PC (for apps and preferences), OneDrive, Microsoft 365 license management, sync files to OneDrive and more. Outlook email is free and powerful (and we all need a second ‘alternate’ email address to verify it is us). The most used personal Microsoft service is Outlook email (People and Calendar). There are over 400 million active Microsoft Outlook/Hotmail/Live email users in the world. Sign in at www.account.microsoft.com and access all the services and subscriptions you use