Change default programs in Windows - Microsoft Support
Select Start > Settings > Apps > Default apps. To change the default app, you can do either of the following: Set a default for a file type or link type. In the search bar, enter the file type or link type you want, then select it from the list of results. You can choose which app can open that file or link type. Set defaults for applications.
Windows help & learning
Find the information you need to build, run, and grow your small business with Microsoft 365. Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
Track my Microsoft Rewards orders - Microsoft Support
If you want to track your Microsoft Rewards order after you redeem an award, sign in to the Rewards page with your Microsoft account, select Redeem and then select Order history. On the Order history page, find your order and then look under Status. Open Rewards dashboard. You can also track your order in the confirmation email that was sent to ...
在 Outlook 中打开 .eml、.msg 和 .oft 文件 - Microsoft 支持
在 Windows 资源管理器中，右键单击.eml、.msg或 .oft 文件，选择“ 使用 >打开 ”，然后选择“ Outlook (新) ”。. 在 Windows 资源管理器中，双击.eml、.msg或 .oft 文件。. 如果文件未在新版 Outlook 中打开，则可能无法将其设置为这些文件类型的默认应用。. 若要更新此项 ...
Applies To:
New Outlook for Windows
创建便笺 - Microsoft 支持
可以通过按 Ctrl+Shift+N 从任何 Outlook 文件夹中创建笔记。. 在笔记中键入文本。. 你可以在工作时将笔记保持打开状态，并将其拖动到屏幕上的任何位置，以便于查看。. 若要关闭备注，请单击备注窗口左上角 注释图标，然后单击“ 保存 & 关闭 ”。. 若要阅读或 ...
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office 2016, Outlook 2013
Stay up to date with news and interests - Microsoft Support
The taskbar can display the temperature in Celsius (°C) or Fahrenheit (°F). To switch between these two units, select the weather icon on the taskbar, select the Edit location and unit icon on the weather card, select Celsius or Fahrenheit on the weather, and select Save. News and interests is supported in any taskbar orientation.
管理 Microsoft 365 订阅或 Office 产品 - Microsoft 支持
在 Microsoft 帐户仪表板，选择“ 服务 & 订阅 ”以查看与此帐户关联的所有 Microsoft 产品。. 登录. 找到 Office 产品并选择“ 安装 ”。. 按照提示安装或重新安装桌面应用。. 选择 “安装高级 Microsoft 365 应用 ”，并按照提示安装或重新安装桌面应用。. 在“Microsoft ...
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, 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, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 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, Office 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, Office 2016, Microsoft 365 admin, Outlook on the web, Word Web App, Microsoft account dashboard, New Outlook for Windows
如何登录或注销 Outlook.com - Microsoft 支持
注销Hotmail 或Outlook.com. 若要注销，请转到 Outlook.com 。. 选择收件箱顶角的帐户缩写或帐户图片。. 选择“ 注销 ”。. 提示: 如果未在屏幕顶部看到图片，请检查是否已打开广告阻止。. 此设置有时会阻止图片显示。. 如果看不到“ 个人资料 ”或“ 帐户 ”选项，可 ...
Applies To:
Outlook.com
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 ”>“ 系统 ”>“ 疑难解答 ”>“ 其他疑难解答 ”。. 接下来，在 最常用的 下，选择 Windows 更新 > 运行 。. 运行完疑难解答后，最好重启设备。. 接 ...
工作或学校帐户双重验证的常见问题 - Microsoft 支持
工作或学校帐户双重验证的常见问题. 有一些常见的双重验证问题似乎比我们任何一个想要的更频繁地发生。. 我们编写了这篇文章，以介绍最常见问题的修复方法。. Azure Active Directory (Azure AD) 组织可以为你的帐户启用双重验证。. 启用双重验证后，帐户登录需要 ...