修复 Windows 中的以太网连接问题 - Microsoft 支持
在电脑上 在“设置”中检查网络状态。打开设置 >网络和 Internet。检查屏幕顶部的以太网连接状态。 请确保网络连接名称下面显示“已连接”。如果存在错误，例如显示“需要操作”的错误，请选择“以太网”以查看以太网连接设置。 如果一根以太网电缆不起作用，并且附近有其他以太网电缆，请 ...
Logga in eller ut på Outlook.com - Microsoft Support
Gå till Outlook.com för att logga ut. Välj dina konto initialer eller profilbilden i det övre hörnet i Inkorgen. Välj Logga ut. Om du inte ser din bild längst upp på skärmen kontrollerar du om annonsblockering är aktiverat. Det förhindrar ibland att bilden visas. Om du inte ser alternativ för Profil eller Konto kan du komma åt dem ...
适用于:
Outlook.com
检查你的 DirectX 版本 - Microsoft 支持
若要使用 DirectX 诊断工具 检查你电脑上使用的是哪个版本的 DirectX，请选择 “开始” 按钮，在搜索框中键入 “dxdiag” ，然后按 Enter 。. 在 DirectX 诊断工具 中，选择 “系统” 标签页，然后在 “系统信息” 下面检查 DirectX 版本号。. 你首次使用 DirectX 诊断工具 ...
Set up an authenticator app as a two-step verification method
Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.
Windows help & learning
If you're a small business owner. 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.
How to redeem Microsoft Rewards points - Microsoft Support
Note: Offers vary by country.Be sure to redeem your rewards points in the same region you signed up in. Do not use a VPN while trying to redeem points. When redeeming points, use a mobile or landline phone number for authentication and not a VoIP phone number.
适用于:
Microsoft 帐户仪表板
Power Pivot - Overview and Learning - Microsoft Support
Power Pivot is a data modeling technology that lets you create data models, establish relationships, and create calculations. With Power Pivot you can work with large data sets, build extensive relationships, and create complex (or simple) calculations, all in a high-performance environment, and all within the familiar experience of Excel.
适用于:
Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016
Find and open File Explorer - Microsoft Support
To check it out in Windows 11, select it on the taskbar or the Start menu, or press the Windows logo key + E on your keyboard. How to use File Explorer: To pin a folder to Quick access, right-click (or press and hold) the folder and select Pin to Quick access. To share a file, select it, then select Share on the ribbon.
更改 Office 产品密钥 - Microsoft 支持
要解决此问题，您可以把产品密钥更改为适用于安装了 Office 的其它电脑。. 注意: 更改产品密钥后，建议创建一个列表，用于管理已安装的产品密钥。. 有关操作方法，请参阅 管理使用相同 Microsoft 帐户的多个一次性购买的 Office 安装 。. 大多数版本的 Office 2021 ...
适用于:
OneNote for Microsoft 365, Visio 计划 2, Microsoft 365 Mac 版专属 OneNote, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project 专业版 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, OneNote 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, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project 专业版 2016, Project Standard 2016, Publisher 2016, Visio 专业版 2016, Visio 标准版 2016, Office 2016
Windows 中的恢复选项 - Microsoft 支持
电脑无法启动，并且你已创建恢复驱动器. 使用恢复驱动器还原或恢复电脑. 你想要重新安装之前的操作系统. 回退到以前版本的 Windows. 你的电脑性能不佳，并且你最近安装了应用. 从系统还原点还原. 你怀疑自己的设备已被感染. 使用安装媒体重新安装 Windows 11 ...