Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...

Sign-in options Usage Guidelines URL: Privacy Policy URL: ...

Tip Set up new passkeys first, then check your account for passkeys that no longer apply and delete them.

Learn how to disable two-step verification for your Xbox account with step-by-step guidance.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

In this article Summary Take Action altSecID attributes Timeline of changes Registry Settings Audit Events Event ID: 45 Event ID: 21 Known issue Summary The Windows security updates released on or after April 8, 2025, contain protections for a vulnerability with Kerberos authentication. This update provides a change in behavior when the issuing authority of the certificate used for a security ...

Get an error message or error code when making a purchase on Xbox? Find out what they mean.

Troubleshooting compliance error messages for a work or school account

Developers have made amazing games and content for the Xbox network. To protect customers and developers, we provide a safe and secure way to make purchases in the Microsoft Store. To maintain this security, Xbox monitors for instances of marketplace theft or solicitation from the Xbox community.