Product activation for Windows – online & support telephone numbers
Learn how to activate Windows using an internet connection, automated system, or live support advocate.
检查你的 DirectX 版本 - Microsoft 支持
检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。
Turn off Defender antivirus protection in Windows Security
Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.
Microsoft Teams (free) - Microsoft Support
Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.
Applies To:
Microsoft Teams, Microsoft Teams personal, Microsoft Teams small business
Office にサインインする - Microsoft サポート
デスクトップ アプリケーションまたは Web ブラウザーから Office または Microsoft 365 にサインインする方法について説明します。
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, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, 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, OneNote for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Project Online, Microsoft 365 for Mac
Scaricare e installare o reinstallare Microsoft 365 o Office 2021 in un ...
Informazioni su come installare, reinstallare o attivare Microsoft 365 o Office 2019 in un PC o un Mac.
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
OneDrive help & learning
Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.
How to enable JavaScript in Windows - Microsoft Support
This article describes step for users to allow all Web sites in the Internet zone to run JavaScript in Internet Explorer, Chrome, and Firefox.
How to add an account in OneDrive - Microsoft Support
If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.
Applies To:
OneDrive (work or school), OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
FIND, FINDB functions - Microsoft Support
This article describes the formula syntax and usage of the FIND and FINDB functions in Microsoft Excel.. Description. FIND and FINDB locate one text string within a second text string, and return the number of the starting position of the first text string from the first character of the second text string.
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