The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Learn how to download files from the web, change your default download location, and find files you've downloaded on your PC using Internet Explorer.

Windows 安全中心应用的“病毒和威胁防护”页面旨在帮助你保护设备免受各种威胁（如病毒、恶意软件和勒索软件）的侵害。 该页提供对多个功能和设置的访问权限，以确保全面保护，分为以下部分： 当前威胁：此部分显示设备上当前发现的任何威胁、上次运行扫描的时间、花费的时间以及扫描的 ...

Hotmail is now Outlook.com To sign in to Hotmail, you'll need your Microsoft account username and password. Sign in at outlook.live.com

Learn how to change your Xbox gamertag on the web, Xbox console, or Windows device while adhering to Xbox Community Standards.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Find out how to change privacy settings for your camera and microphone in Windows.

Learn more about the advanced security features for Outlook.com that come with an Office 365 Home or Office 365 Personal subscription.

ASCII and Unicode character encoding enables computers to store and exchange data with other computers and programs. Below are lists of frequently used ASCII and Unicode Latin-based characters. For Unicode characters for non-Latin-based scripts, see Unicode character code charts by script. In this article Insert an ASCII or Unicode character into a document Common symbol character codes Common ...

安装媒体（如 U 盘）可用于安装 Windows 的新副本、执行 Windows 的全新安装或重新安装 Windows。 若要创建安装媒体，请转到 软件下载网站，可在其中找到分步说明。 在该网站上，你可以选择 Windows 版本，并在 USB 闪存上创建安装媒体。 或者，可以创建一个 ISO 文件，用于虚拟机 (VM) ，或用于将安装 ...