Make a Wi-Fi network public or private in Windows
When you first connect to a Wi-Fi network in Windows 11, it’s set as public by default. This is the recommended setting. However, you can set it as public or private depending on the network and what you want to do:
Add recipients of my email messages to the Safe Senders List
When you send a message to a person or organization that isn’t an Outlook contact, the recipient email address isn’t added to the Safe Senders List.This means that when the recipient replies to your message, the reply message might be moved to the Junk E-Mail folder.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
修复 Windows 中的 USB-C 问题 - Microsoft 支持
注意: 带 USB Type-C 连接器的电脑具有更高的功率限制。 如果连接器支持 USB 电力传输,则其能够以更大的功率实现更快速充电。. 要更快地充电,你的电脑、充电器和线缆均必须符合行业标准。
如何更改 Microsoft 帐户上的出生日期 - Microsoft 支持
某些帐户是使用当前日期而不是出生日期创建的 - 这出人意料地很常见,我们正在努力防止帐户创建错误。 如果你是成年人,但帐户的出生日期不正确,则需要像更改孩子一样更改帐户信息。
Applies To: Microsoft account dashboard
IFERROR function - Microsoft Support
Examples. Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter.
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, Excel Web App
How to install games and apps on an Xbox console
Things to keep in mind: Xbox installs one game or app at a time. Additional installations will continue in sequence when the first one's done. To play games that are optimized for Xbox Series X|S, they must be installed on your console’s internal storage (the default location) or Storage Expansion Card (sold separately).
从“文件”菜单打开文件 - Microsoft 支持
提示: 如果要绕过“文件”>“打开”并始终使用“打开”对话框,请执行此操作:选择“文件 > 选项 > 保存”,然后选择“打开或保存文件时不显示 Backstage”框检查。然后,关闭所有打开的 Office 应用程序再重新打开。 请注意,此更改仅影响按 Ctrl+O 访问“打开文件”对话框时看到的内容。
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access 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, PowerPoint for Microsoft 365 for Mac, Excel 2021, Word 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, PowerPoint 2021 for Mac, Excel 2019, Word 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, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016
COUNTIFS 函数 - Microsoft 支持
备注. 每个区域的条件一次应用于一个单元格。 如果所有的第一个单元格都满足其关联条件,则计数增加 1。 如果所有的第二个单元格都满足其关联条件,则计数再增加 1,依此类推,直到计算完所有单元格。
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, Excel Web App
Returning items you bought from Microsoft for exchange or refund
Digital goods like apps, games, add-on content, subscriptions, movies, TV shows, and books aren't returnable unless the offer for applicable law states that you're eligible for a refund.
Applies To: Microsoft account dashboard
Windows 更新疑难解答 - Microsoft 支持
如果你在下载和安装 Windows 更新时收到错误代码,更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置> ”>“更新和安全 ”>“疑难解答”>“其他疑难解答”。 接下来,在“启动并运行”下,选择“Windows 更新” > “运行疑难解答”。 运行完疑难解答后,最好重启设备。