Repair an Office application - Microsoft Support
Repair broken Office app installations. Depends on your Office installation type (Click-to-run or MSI-based), you'll see the following options to proceed with the repair.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, InfoPath 2013, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Trouver votre clé de produit Windows - Support Microsoft
Découvrez comment trouver une clé de produit Windows pour l’activation et quand utiliser une licence numérique à la place.
Applies To:
Microsoft account dashboard
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.
Zip and unzip files - Microsoft Support
Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders.
Schedule a meeting in Microsoft Teams - Microsoft Support
Find out how straight-forward it is to schedule remote meetings in Microsoft Teams for both people inside and outside of your organization.
Applies To:
Microsoft Teams
打开或关闭 Microsoft Defender 防火墙 - Microsoft 支持
即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：
Xbox Support
Find out how to request a refund for your Xbox digital purchases or subscriptions on the official Xbox Support website.
Change or reset Internet Explorer settings - Microsoft Support
Learn how to change Internet Explorer settings, or reset browser settings when there's a problem.
Windows のサウンドまたはオーディオの問題を修正する - Microsoft サポート
Windows でサウンドまたはオーディオの問題を修正する方法を確認してください。
Map a network drive in Windows - Microsoft Support
Map a network drive to get to it from File Explorer in Windows without having to look for it or type its network address each time.