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Product activation for Windows – online & support telephone numbers
Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate.
How to redeem gift cards and codes | Xbox Support
Learn how to redeem a Microsoft/Xbox gift card or other code on your mobile device, Windows device, or Xbox console.
Cancel your Microsoft subscription - Microsoft Support
Cancel your Microsoft subscription Select the correct link for help with canceling a Microsoft 365, Microsoft Copilot Pro or an Xbox subscription. For all other subscriptions, follow the steps in the Cancel other Microsoft subscriptions section below.
Applies To: Microsoft account dashboard
Update your Xbox Wireless Controller | Xbox Support
Update your Xbox Wireless Controller Keeping your controller updated with the latest software maximizes your controller's capabilities and compatibility. You can update your controller wirelessly, with a USB connection, or on a PC using the Xbox Accessories app.
ブラウザーのホーム ページを変更する - Microsoft サポート
Microsoft Edge、Internet Explorer 11、Google Chrome、Firefox、Safari でホーム ページを変更する手順について説明します。
COUNTIF function - Microsoft Support
COUNTIF function Use COUNTIF, one of the statistical functions, to count the number of cells that meet a criterion; for example, to count the number of times a particular city appears in a customer list.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Options de connexion de Windows 10 et protection des comptes
Pour activer Windows Hello. Accédez à Démarrer > Paramètres > Comptes > Options de connexion. Sélectionnez la méthode Windows Hello que vous souhaitez configurer, Sélectionnez Configurer. Il se peut que Windows Hello ne soit pas disponible pour votre appareil si cette fonctionnalité n'apparaît pas dans Options de connexion.
Use Magnifier to make things on the screen easier to see
Learn how to make items on the screen appear larger by using Magnifier in Windows.
Device encryption in Windows - Microsoft Support
In the search box on the taskbar, type System Information, right-click System Information in the list of results, then select Run as administrator. Or you can select the Start button, and then under Windows Administrative Tools, select System Information. At the bottom of the System Information window, find Device Encryption Support.
Activa Bluetooth activa o desactiva en Windows
En la barra de tareas, seleccione el icono Red. Seleccione la Bluetooth configuración rápida para activarla o desactivarla. Seleccione Inicio > Configuración > Bluetooth & dispositivos y, a continuación, Bluetooth activar o desactivar. Nota: La Bluetooth rápida solo aparece en el sistema cuando Windows detecta un Bluetooth de datos.