在 PC 或 Mac 上下載並安裝或重新安裝 Microsoft 365 或 Office 2021 - Microsoft 支援服務
準備安裝了嗎？ 開始之前，請確定您的PC或Mac符合 系統需求。. 如果您已兌換產品密鑰，只要重新安裝應用程式，或是知道您已透過公司或學校指派授權，您可以跳到登入以 下載並安裝 Microsoft 365 或 Office 一節。 不過，如果這是您 第一次 安裝 Microsoft 365或 Office，您可能需要先執行一些步驟。
Applies To:
Office 2024, Office 2024 for Mac, Office 2021, Office 2021 for Mac, Office 2019, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Holen Sie sich das neueste Windows-Update - Microsoft-Support
Windows-Geräte erhalten möglicherweise zu unterschiedlichen Zeiten neue Funktionen, da Microsoft nicht sicherheitsrelevante Updates, Fehlerbehebungen, Verbesserungen und Verbesserungen über verschiedene Wartungstechnologien bereitstellt – einschließlich des kontrollierten Featurerollouts (Controlled Feature Rollout, CFR). Windows informiert Sie darüber, ob Sie Ihr Gerät neu starten ...
Windows Update: FAQ - Microsoft Support
Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected.
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Training: Learn how to create a shareable link to make it easy to share files in a document, email, or IM.
Microsoft and Xbox gift cards - Microsoft Support
With a Microsoft or Xbox gift card, you let the lucky recipient choose the gift they want.There are no fees or expiration dates, and either card can be used to buy: Popular games, apps, and add-ons for Windows and Xbox.
Windows 10 update history - Microsoft Support
Windows 10, version 2004 and Windows Server, version 2004 update history; End of service statement; December 14, 2021—KB5008212 (OS Builds 19041.1415, 19042.1415, 19043.1415, and 19044.1415)
Find your product key for Office 2010 - Microsoft Support
When you install Office 2010, you'll be prompted to enter a 25-character product key that looks something like this: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
Applies To:
SharePoint Designer 2010, Excel 2010, Word 2010, Outlook 2010, PowerPoint 2010, Access 2010, OneNote 2010, Project 2010, Project Standard 2010, Publisher 2010, Visio Premium 2010, Visio 2010, Visio Standard 2010, InfoPath 2010
Hardware warranty, services, and repair
Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.
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Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.
Use live captions to better understand audio - Microsoft Support
Choose either Above screen, Below screen, or Overlaid on screen.. When you choose Above screen or Below screen, the captions window will appear as docked to the top or bottom screen edges in reserved space on your desktop, and other apps will not be blocked by the captions window.When docked to the top, you might find that live captions works well while sharing video in a virtual meeting or ...