After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Summary. This update includes a new user interface (UI) functionality for Windows Update in Windows.

Windows Hello. Windows Hello 可使你通过你的面部、虹膜、指纹或 PIN 登录到你的设备、应用、在线服务和网络。 即使你的 Windows 设备可以使用 Windows Hello 生物识别，也不必这么做。

Get help and learn how to use Skype with Microsoft's official support page.

A Microsoft account is a personal account required for access to Microsoft’s products and services.

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

Use Find my device to locate and lock your lost or stolen Windows devices.

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

Découvrez comment accéder à vos options de connexion Windows et les gérer. Utilisez un mot de passe, un Windows Hello ou une clé de sécurité pour déverrouiller votre appareil.

Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.