如果上述步骤都不能修复你的蓝牙问题，请使用 Windows 反馈中心报告错误。 这可帮助 Microsoft 确定此问题的根本原因。 请提供发生问题时你正在执行的操作或采取的具体步骤的详细信息。

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Features with audio and video functionality.. Many features that come as part of Windows can be used to view or play video or audio content. Here are some examples: OneNote app (lets people record or play audio), Microsoft Edge web browser (lets people play audio and video content on the internet), the Photos app, the OneDrive app, and others.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Use your scanner and download an app from Microsoft Store to scan a document or picture to your PC.

Note: If you forgot your account info and had to reset your security info, you must wait 60 days before closing your account.

In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).

To activate Windows 11 using an internet connection: As Windows 11 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > System > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows.. To activate Windows 11 by phone:

The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC.

Before you begin. Driver updates for Windows, along with many devices, such as network adapters, monitors, printers, and video cards, are automatically downloaded and installed through Windows Update.