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Find your product key for Office 2007 - Microsoft Support
If your Office product key doesn’t work, or has stopped working, you should contact the seller and request a refund. If you bought a product key separate from the software, it’s very possible the product key was stolen or otherwise fraudulently obtained, and subsequently blocked for use. Unfortunately, there are many dishonest sellers who ...
Applies To:
Excel 2007, Word 2007, Outlook 2007, PowerPoint 2007, Access 2007, OneNote 2007, Project 2007, Project Standard 2007, Publisher 2007, Visio 2007, Visio Standard 2007
如果文件资源管理器不能打开或启动，进行修复 - Microsoft 支持
若要在Windows 10中打开文件资源管理器，请选择任务栏上的图标 ，按键盘上的 Windows 徽标键 + E，或选择用户图标) 正下方的“开始 > 文档 (”。. 如果无法打开文件资源管理器，下面是一些可以尝试的方法。
I can't send or receive messages in Outlook - Microsoft Support
On the Outlook status bar, if you see Disconnected, Working Offline, or Trying to connect…, then Outlook can't reach the email server to send your mail.. To fix this problem, on the ribbon, select the Send/Receive tab, then, in the Preferences group, select Work Offline to toggle between offline mode and online mode.You may need to open the message and send it again or choose Send/Receive.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013, Microsoft 365 admin
What's new in Word 2021 for Windows - Microsoft Support
Word 2021 for Windows enables you to create compelling content and includes co-authoring, new stock media from the Office Premium Creative Content collection, and new Draw tab additions such as Point Eraser, Ruler, and Lasso.
Applies To:
Word 2021
SUM function - Microsoft Support
How do I add or subtract Times? You can add and subtract times in a few different ways. For example, to get the difference between 8:00 AM - 12:00 PM for payroll purposes you would use: =("12:00 PM"-"8:00 AM")*24, taking the end time minus the start time.Note that Excel calculates times as a fraction of a day, so you need to multiply by 24 to get the total hours.
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
Save a Word document as a template - Microsoft Support
Whether you’re starting from a Microsoft template or updating one of your own, Word's built-in tools help you update templates to suit your needs. To update your template, open the file, make the changes you want, and then save the template. In Microsoft Word, you can create a template by saving a document as a .dotx file, .dot file, or a .dotm fie (a .dotm file type allows you to enable ...
Applies To:
Word for Microsoft 365, Word 2021, Word 2019, Word 2016
下载并安装应用 - Microsoft 支持
提示. 安装应用时，你可能会看到“ 用户帐户控制 ”提示弹出并询问是否允许此应用对设备进行更改？选择“是”。
Customize the Quick Access Toolbar - Microsoft Support
Add a command to the Quick Access Toolbar that isn’t on the ribbon. Remove a command from the Quick Access Toolbar. Change the order of the commands on the Quick Access Toolbar. Customize the Quick Access Toolbar by using the Options command. Reset the Quick Access Toolbar to the default settings. Export a customized Quick Access Toolbar
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, 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, 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, InfoPath 2013, SharePoint Workspace 2010
準備進行 Windows 11 升級 - Microsoft 支援服務
安裝 Windows 11. 當 Windows 11 升級已針對您的特定電腦進行測試並驗證之後，Windows Update 會指出它已準備好安裝。 若要檢查 Windows 11 是否已準備好安裝到您的裝置，請前往 [啟動] > [設定] > [更新與安全性] > Windows Update ，然後選取 [檢查更新]。 如果您的裝置可以升級，而您想要繼續進行，請下載並安裝它。