Support for Office 2021 will end on October 13, 2026. Learn more about your options for Office.

Windows 11 Windows 10 如果你的麦克风功能或耳机或摄像头上的麦克风出现问题，以下信息可以帮助你排查和解决问题。 确保应用有权访问麦克风 如果在更新Windows 11后未检测到麦克风，则可能需要向应用授予使用该麦克风的权限。 方法如下： 选择“ 开始> 设置”“> 隐私 & 安全> ”“麦克风 ”，并确保 ...

Support for Windows 10 has ended on October 14, 2025. Learn more about your options for Windows 10.

How to change your email password. If you intend to update or change your email password, you must do that with your email provider (e.g., Microsoft 365, Gmail, Yahoo, iCloud, Xfinity, or a corp. Exchange server). Then you will need to update the password in Outlook. When should I change my password with my email provider? Change your password when: You think someone has stolen or gained ...

Find out how to resolve your XBOX purchase error when you’re trying to buy something from the Microsoft Store.

Learn how to create a SharePoint survey that offers multiple choice, look up, or open-ended options, and track all the results in SharePoint

.NET 10.0 Update - April 21, 2026 .NET 10.0 has been refreshed with the latest update as of April 21, 2026. This update contains security fixes. See the release notes for details about updated packages. .NET 10.0 servicing updates are upgrades. The latest servicing update for 10.0 will remove the previous 10.0 update upon successful installation. For example, when the .NET 10.0.7 is installed ...

This article contains the summary, known issues, improvements, fixes, and other information for SQL Server 2022 Cumulative Update 26 (KB5093420).

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Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.