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How to set up and test microphones in Windows - Microsoft Support
Get tips for how to set up and test microphones in Windows.
Change or reset Internet Explorer settings - Microsoft Support
Learn how to change Internet Explorer settings, or reset browser settings when there's a problem.
Manage devices used with your Microsoft account
Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.
Applies To: Microsoft account dashboard
Mettre à jour manuellement les pilotes dans Windows
Découvrez comment mettre à jour des pilotes dans Windows à l’aide de Gestionnaire de périphériques pour mettre à jour ou réinstaller un pilote.
Find and remove duplicates - Microsoft Support
How to find and remove duplicates in Excel. Filter for unique values in large or small datasets to clean up your worksheets and workbooks.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Reset or recover your lost Microsoft account password
If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.
配置 Windows Hello - Microsoft 支持
了解如何使用 PIN、面部识别或指纹通过 Windows Hello 登录电脑。
Manage app permissions for your camera in Windows
To use your camera with apps on Windows 11, you'll need to turn on some permissions in Camera settings. Then, you'll need to check your app permissions if you want to use your camera with apps.
Insert the current date and time in a cell - Microsoft Support
Learn how to insert the current date and time in Excel as static or dynamic values with easy steps and examples.
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
Microsoft 365 help & learning
Get Microsoft 365 support, help, and learning resources. Organize your life, expand your creativity, and protect what’s important with Microsoft 365
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 for home, Microsoft 365 for Mac, Microsoft 365 for Windows