Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

This content can help you with your work or school account, which is the account provided to you by your organization (for example, dritan@contoso.com).

Microsoft may limit or block voice or SMS authentication attempts that are performed by the same user, phone number, or organization due to high number of failed voice or SMS authentication attempts. If you are experiencing this error, you can try another method, such as Authenticator App or verification code, or reach out to your admin for ...

Learn how to set up your user account for multifactor authentication with Microsoft 365.

How OneDrive protects your data. Microsoft engineers administer OneDrive using a Windows PowerShell console that requires two-factor authentication.

If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC.

Check the Xbox services, games, and apps for any service outages.

Learn how to use the PC Health Check app to help you improve your device performance.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

Learn how to create installation media for installing or reinstalling Windows 7, Windows 8.1, or Windows 10.