Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here’s what you need to know about installing this important update. Check to see if it’s already installed

与拥有手机、笔记本电脑或平板电脑的好友共享照片、视频或其他类型文件。 确保希望共享的其他设备已与你的电脑配对、已打开并且可以接收文件。了解如何配对

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method

下面是安装或管理字体的两种方法： 所有字体都存储在 C:\Windows\Fonts 文件夹中。 （可选）只需将字体文件从提取的文件文件夹拖动到此文件夹中即可添加字体。

Once you've allowed microphone access to your apps, you can change the settings for each app. In Microphone settings, go to Choose which Microsoft apps can access your microphone, and turn on apps you want to use with it.For desktop apps, make sure that Allow desktop apps to access your microphone is turned on.

Smart App Control adds significant protection from new and emerging threats by blocking apps that are malicious or untrusted. Smart App Control also helps to block potentially unwanted apps, which are apps that may cause your device to run slowly, display unexpected ads, offer extra software you didn't want, or do other things you don't expect.

Si no ves la opción Inicio en Configuración, haz clic con el botón derecho en Inicio (o selecciona y mantén presionado), selecciona Administrador de tareas y, a continuación, selecciona la pestaña Aplicaciones de inicio. (Si no ves la pestaña Aplicaciones de inicio, selecciona Más detalles).Haz clic con el botón derecho (o selecciona y mantén presionada) la aplicación que quieres ...

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Résoudre les problèmes liés à l’installation de Windows SP1. Si vous essayez d’installer SP1 et qu’un message d’erreur indiquant l’échec de l’installation s’affiche, cela peut être dû à un problème avec les Services de maintenance Windows utilisés pour installer les mises à jour ou lié au fait que le logiciel antivirus empêche l’installation de la mise à jour.