When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

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。

Learn how to access the Control Panel in Windows for managing your system settings and programs.

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.

Some sites are built to work with Internet Explorer and have functionality that isn't supported by modern browsers such as Microsoft Edge. If you need to view one of these sites, you can use Internet Explorer Mode in Microsoft Edge.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

In Sound settings, go to Input and under Test your microphone, look for the blue bar that rises and falls as you speak into your microphone.If the bar is moving, your microphone is working properly.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2