Change the power mode for your Windows PC - Microsoft Support
Choose the power mode that works for you and what you want to do on your Windows 11 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode, select Start > Settings > System > Power & battery.
Give your PC a Fresh Start - Microsoft Support
Give your PC a Fresh Start. Resetting your PC lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact. In some cases, a clean installation may improve your device's performance, security, browsing experience, and battery life.
Windows 11, version 23H2 update history - Microsoft Support
The update history page will provide you with the build numbers for 22H2 and 23H2. This will make it easier for support to assist you if you encounter issues. This new update will be cumulative with all the newly announced features including Copilot in Windows (in preview) plus additional changes.
How to use focus in Windows 11 - Microsoft Support
Focus is a new feature in Windows 11 that helps you minimize distractions. To help you stay on track, it integrates with the Clock app with features like a focus timer and music integration. Note: Do not disturb has replaced focus assist from Windows 10.
修复 Windows 中的 USB-C 问题 - Microsoft 支持
大多数电脑仅支持 USB-C 数字音频适配器，其中的硬件可将电脑中的数字音频数据转换为你的耳机或扬声器可以播放的模拟信号。. USB-C 数字音频适配器通常比模拟音频适配器更贵。. 学习如何在 Windows 中解决 USB-C 问题，修复 USB 设备、端口和适配器无法正常工作。.
Windows 帮助和学习
查找有关 Windows 操作系统的帮助和操作方法文章。. 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。.
激活 Office - Microsoft 支持
选择下面的 Microsoft 365 版本，了解如何激活 Microsoft 365。. 激活 Microsoft 365 或非订阅版本的 Office. 激活预安装在新 Windows 设备上的 Office. 激活新 Windows 设备上包含的 Office 购买或产品/服务. 从 Microsoft 工作区折扣计划激活 Office. 激活一个全新的 Office 产品密钥. 解决 ...
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 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 for home, Office for business, Office.com, Project for Office 365
适用于 Surface 的 USB-C 和快充 - Microsoft 支持
如果选择这种方式充电，请注意以下事项：. 为了获得最佳性能，我们建议使用 USB-C PD 充电器，其功率至少与为 Surface 设计的电源相同。. 有关 Surface 电源的详细信息，请参阅 Surface 电源和充电要求 。. 如果使用 USB-A 到 USB-C 电缆连接较低电压的充电器或 USB-A ...
Surface 电源和充电要求 - Microsoft 支持
如果你有兴趣购买其他电源或升级电源，请参阅 Microsoft Store Microsoft Surface 电源 。. Surface 电源专为 Surface 而设计。. 我们强烈建议仅使用正版Microsoft或Microsoft授权的电源（Surface 附带或单独购买的电源）为电池充电。.
欢迎使用 Windows 中的 Copilot - Microsoft 支持
Copilot 可帮助你从整个 Web 获取答案和灵感，支持创造力和协作，并帮助你专注于手头的任务。. 重要: 在发往 Copilot PC 可用的欧盟和其他市场的新款 Windows 11 电脑和新款 Copilot 电脑上，Copilot 应用将固定到 Windows 任务栏。. 对于现有的 Windows 11 电脑，可用时间和 ...