Unlicensed Product and activation errors in Office
If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.
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 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, InfoPath 2013
在 Microsoft Edge 中管理 Cookie：查看、允许、阻止、删除和使用 - Microsoft 支持
Microsoft Edge 允许阻止来自特定网站的 Cookie，但这样做可能会阻止某些页面正确显示，或者你可能会从某个站点收到一条消息，告知你需要允许 Cookie 查看该网站。
Applies To:
Microsoft Edge
How to get and use app passwords - Microsoft Support
Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.
Filter junk email and spam in Outlook - Microsoft Support
Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.
Applies To:
Office for business, Office 365 Small Business, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
INDEX function - Microsoft Support
How to use the INDEX function in Excel to return a value or reference to a value within a table or range.
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
Add speaker notes to your slides - Microsoft Support
Add speaker notes to each slide to help you remember what you're going to say when you present.
Applies To:
PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016
Export and import OneNote notebooks - Microsoft Support
Note: Exporting and importing notebooks through OneNote for the web is only available for notebooks stored on personal OneDrive accounts, not for notebooks stored on OneDrive for Business or SharePoint.For information about exporting notebooks to PDF files from OneNote 2016 for Windows, see Export notes from OneNote as a PDF.
Applies To:
OneNote for Microsoft 365, OneNote for Microsoft 365 for Mac, OneNote for the web, OneNote 2021, OneNote 2021 for Mac, OneNote for Windows 10, OneNote 2019 for Mac, OneNote 2016, OneNote for Mac, OneNote for iOS, OneNote for Android phones
My Account portal for work or school accounts - Microsoft Support
Change two-step verification settings; Common problems with two-step verification for work or school accounts; Manage app passwords for two-step verification
OneDrive help & learning
Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.
Find your IP address in Windows - Microsoft Support
Get info on how to find your IP address in Windows. Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.