屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
修复 Windows 中无线显示器或扩展坞的连接. 了解如何将内容从一台设备屏幕镜像或投影到另一台设备。
Download and install or reinstall Office 2019, Office 2016, or Office ...
From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options.
适用于:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
配置 Windows Hello - Microsoft 支持
Windows Hello 是登录到 Windows 设备的一种更个性化、更安全的方式。. 在 Windows Hello 中，你可以使用面部识别、指纹或 PIN 登录，而不是使用密码。. 这些选项有助于更轻松地登录电脑，因为你的 PIN 仅与一台设备相关联，并且它已使用 Microsoft 帐户进行备份以供恢复 ...
How to use the PC Health Check app - Microsoft Support
PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.
How do I connect my Xbox controller to PC? | Xbox Support
To connect your controller with Xbox Wireless, you might need the Xbox Wireless Adapter for Windows. If your PC has Xbox Wireless built in, you can connect the controller directly without an adapter. If you’re using the Xbox Wireless Adapter: Plug the Xbox Wireless Adapter into your PC.
Activate Office - Microsoft Support
Select your version of Microsoft 365 below to learn how to activate Microsoft 365. Activate Microsoft 365 or a non-subscription version of Office. Activate Office that's pre-installed on a new Windows device. Activate an Office purchase or offer that's included on a new Windows device.
适用于:
Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 Outlook, Microsoft 365 专属 PowerPoint, Microsoft 365 专属 Access, OneNote for Microsoft 365, Microsoft 365 专属 Publisher, Visio 计划 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 家庭版, Office 商业版, Microsoft 365 管理员, Project for Office 365
Microsoft 365 Customer Service and Support - Microsoft Support
Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft 365 Family subscription, get questions answered from anywhere via chat or request to receive a call back from one of our technical support experts.
适用于:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 家庭版
Create installation media for Windows - Microsoft Support
You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.
Xbox 无线控制器快速入门指南 | Xbox Support
安装控制器电池. 用一只手握住倒置的控制器。. 用另一只手的拇指按箭头符号上的电池门，并按箭头指示的方向移动电池门。. 按电池盒槽内显示的方向插入电池。. 启动控制器. 按控制器前面的 Xbox 按钮 。. 配对控制器. 有关如何将控制器连接到主机、电脑或 ...
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.