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)
退还从 Microsoft 购买的物品以进行换货或退款 - Microsoft 支持
了解如何接收从 Microsoft 购买的商品的退款或换货。
Applies To:
Microsoft account dashboard
订阅和计费 | Xbox Support
获取与管理你的 Xbox 订阅、帐单问题等有关的详细信息。
在 PC 或 Mac 上下載並安裝或重新安裝 Microsoft 365 或 Office 2021
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、只是重新安裝應用程式，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 章節。 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 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, 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
Supporto tecnico Microsoft
Il supporto tecnico Microsoft è disponibile per aiutarti con i prodotti Microsoft. Trova articoli, video e formazione su Microsoft Copilot, Microsoft 365, Windows, Surface e altro ancora.