If you have an account with a web service like Facebook, LinkedIn, or Twitter, you can add it to your Microsoft account. This connects the two accounts and allows specific info to be shared between them so you can use it in your apps and other places where you sign in with a Microsoft account.
For example, if you add an account that contains your friends' contact info, you can choose to show that info in the People and Mail apps.
Microsoft won’t share info associated with your Microsoft account without your permission.
Go to the Microsoft account overview webpage and sign in.
Tap or click Permissions, and then tap or click Add accounts.
Tap or click the account that you want to add, and follow the instructions.
You’ll be asked to sign in to the account you're adding, and to decide which types of info you want to share between your accounts.
Tap or click Permissions, and then tap or click Manage accounts. You’ll see a list of all the accounts that you’ve added to your Microsoft account.
Tap or click Edit by the account you want to remove.
Tap or click Remove this connection completely.
To see a video about how to change sharing settings for an account you've added to your Microsoft account, see Change sharing settings for apps and accounts.