Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information.

你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。 在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

Explore tips to change your Microsoft Teams background. Learn how to replace, blur, or change your Teams background image before or during a meeting.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need to contact your email provider for their settings.

Learn how to concatenate text strings in Excel using the CONCATENATE function. Our step-by-step guide makes it easy to join two or more text strings into one.