Do I sign in with an Office account or a Microsoft account?

When you open an Office program or when you sign in at, you might see a sign-in dialog box, where you enter your email address.

Office Sign In page

When you type your email address and click Next, you’ll proceed to a sign-in page where you enter the password that goes with the address you typed.

Microsoft account

If you bought Office 365 Home or Office Home and Student 2010, you’ll sign in with a Microsoft account at,,

Signing in to Office with Microsoft account

Note:  You might have more than one Microsoft account. Make sure that you sign in with the Microsoft account that's associated with your Office subscription.

Work or school account

The work or school account is what you use to access your organization’s Office 365 homepage.

Sign in with your work or school account

Check out Where to sign in to Office 365 for more more details about signing in to Office 365.

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