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Windows sign-in options and account protection - Microsoft Support
To access your sign-in options, go to Start > Settings > Accounts > Sign-in options.. Or just select this button: Go to Sign-in options. Change or manage your password or PIN. To change your password or PIN, go to Start > Settings > Accounts > Sign-in options. Select PIN (Windows Hello), and then select Change PIN.
Share your PowerPoint presentation with others - Microsoft Support
Invite people to view or edit your presentation. Save your file to the cloud and then invite people to view or edit it. That way, whenever you update your file, everyone you share with will have the latest version.
Applies To: PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016
Set up the Microsoft Authenticator app as your verification method
Method. Used for. Authenticator app. Two-factor verification and password reset authentication. Text messages. Two-factor verification and password reset authentication.
What does it mean when your OneDrive account is frozen?
You may see an "account frozen" message and icon if you have exceeded your storage allowance and/or haven't signed in for a long time. You just need to get back under your Microsoft storage quota to get access to your files again.
Applies To: Office for business, OneDrive (home or personal)
Download files from the web - Microsoft Support
Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.
How to get help in Windows - Microsoft Support
Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.
Outlook help & learning
Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content
Open a OneDrive or SharePoint file in the desktop app instead of the ...
Choose a default app. The Open in app feature supports all file types, not just Word, Excel, and PowerPoint. For example, you can open a .pdf or a .mp4 file in the desktop app by clicking the Open in app option.. If there is a default app available to open a file, then the Open in app option automatically chooses the default app to open that file.
Applies To: OneDrive for Business, SharePoint in Microsoft 365, Office 365 Small Business, Microsoft 365 admin, SharePoint Foundation 2013, OneDrive (work or school), OneDrive for Mac, OneDrive for Windows
修复麦克风问题 - Microsoft 支持
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。
Mise en miroir d’écran et projection sur votre PC ou écran sans fil
Remarque : L’application Affichage sans fil est disponible sur les appareils exécutant Windows 11 version 22H2 et ultérieure.Si vous exécutez une version antérieure de Windows, lancez l’application Connecter en entrant se connecter dans la zone de recherche de la barre des tâches et en sélectionnant Se connecter dans la liste des résultats.