使用 VLOOKUP、INDEX 或 MATCH 查找值 - Microsoft 支持
使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Fix your Outlook email connection by repairing your profile
On the Email tab, choose your account (profile), and then choose Repair. Note: The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account. Follow the prompts in the wizard, and when you’re done, restart Outlook.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin
Fix network connection issues in Windows - Microsoft Support
Try these things to troubleshoot network connection issues in Windows 11. Make sure Wi-Fi is on. Select Start > Settings > Network & internet, then turn on Wi-Fi.Next, select More options (>) next to Wi-Fi, then select Show available networks.If a network you expect to see appears in the list, select it, then select Connect. Open Wi-Fi settings
Download Internet Explorer 11 (Offline installer) - Microsoft Support
Microsoft Edge is the browser recommended by Microsoft. Support for Internet Explorer ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can reload it with Internet Explorer mode in Microsoft Edge.
Use System Restore - Microsoft Support
Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually.
Change or update your email password - Microsoft Support
On the Tools tab, select Accounts. In the left pane, select the account you want to change the password for. Select . Note: ...
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft 365 admin, New Outlook for Windows
Create a contact group in Outlook - Microsoft Support
Add people from your address book or contacts list, and choose OK.To select multiple people, hold down the Ctrl key as you choose members.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Get Windows Media Player - Microsoft Support
Windows Media Player is available for Windows-based devices. Use this table to find the right version of the Player for your system. (If you've got a Mac, you can download Windows Media Components for QuickTime to play Windows Media files.)
Bildschirmspiegelung und Projektion auf Ihren PC oder ihre drahtlose ...
Wählen Sie auf dem PC, von dem Sie projizieren möchten, Windows-Logo-Taste + K aus, und wählen Sie den PC aus, mit dem Sie eine Verbindung herstellen möchten. Alternativ können Sie in der Windows Search-Leiste nach Cast suchen und dann Verbindung mit einer drahtlosen Anzeige herstellen auswählen. Wählen Sie auf der Seite Anzeigeeinstellungen unter Mehrere Anzeigen die Option Mit einer ...
创建适用于 Windows 的安装介质 - Microsoft 支持
你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。 在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。