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

如果你在下载和安装 Windows 更新时收到错误代码，更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置> ”>“更新和安全 ”>“疑难解答”>“其他疑难解答”。 接下来，在“启动并运行”下，选择“Windows 更新” > “运行疑难解答”。 运行完疑难解答后，最好重启设备。

如果麦克风功能出现问题，则以下信息可以帮助你排除故障和解决问题。 确保应用有权访问麦克风. 如果在更新 Windows 10 后未检测到麦克风，则表示你可能需要先授予应用相关权限才能使用它。

Microsoft Copilot is an AI-powered digital assistant designed to help users with a range of tasks and activities on their devices. It can create drafts of content, suggest different ways to word something you've written, suggest and insert images, create PowerPoint presentations from your Word documents and many other helpful things.

Avant de commencer. Assurez-vous que l’appareil sur lequel vous souhaitez installer Windows 11 dispose de la configuration minimale requise.Si votre appareil exécute actuellement Windows 10, nous vous recommandons de vérifier la configuration minimale requise à l’aide de l’Application Contrôle d'intégrité du PC.Nous vous déconseillons d’installer Windows 11 sur un appareil qui ...

Energy saver automatically manages system processes and power usage for an optimal balance of PC performance and longer battery life. Select Start > Settings > System > Power & battery .If you want energy saver to turn on whenever the battery falls below a certain level, select Energy saver to expand options, then next to Turn energy saver on when battery level is at, select the battery level ...

Узнайте, как изменить режим питания на компьютере Windows для сохранения заряда батареи, ограничения уведомлений и фоновых действий.

Deslice el dedo rápidamente desde el borde derecho de la pantalla y pulse Buscar.O bien, si usa un mouse, señale el extremo inferior derecho de la pantalla y haga clic en Búsqueda.Escriba Símbolo del sistema en el cuadro de Búsqueda, haga clic con el botón derecho en Símbolo del sistema y luego haga clic en Ejecutar como administrador.Si se le pide una contraseña de administrador o que ...

Excel makes it easy to crunch numbers. With Excel, you can streamline data entry with AutoFill. Then, get chart recommendations based on your data, and create them with one click.

Upload captions and transcripts Upload your own WebVTT captions and transcript file by selecting Video settings in the upper right of the web player.Expand the Transcripts and captions section if closed, then select Upload.In the dialog that appears, select the language of the file you’re uploading.