Download Windows Media Player. Get Windows Media Player for your version of Windows, or learn how to play Windows Media files on your Mac. Get the details here.

汇报默认屏幕和睡眠设置现在可帮助你更高效地使用能量并延长电池使用时间。 可以在 Windows 11 中找到效率设置 >系统 > 电源 & 电池。. 有关每个电源和电池设置如何提高设备性能的引导式演练，请单击按钮打开“获取帮助”应用：

The following new and improved features have been implemented in Windows Installer 4.5. Multiple package transactionIn a multiple package transaction, you can create a single transaction from multiple packages.

When you start a focus session, a focus timer will appear on screen. To use additional focus tools in the Clock app, expand the focus timer to get the full view of the Clock app.

Notes: If your Android device is running Android 11.0 or higher, you may be eligible for the multiple apps experience. Compatible devices are marked with an asterisk (*).

Windows 10 使用疑难解答帮助你解决电脑问题，而不是使用修复工具。 运行疑难解答： 选择“开始 > 设置 > 更新 & 安全 > 故障排除 > 其他疑难解答”，或选择本主题末尾的“ 查找疑难解答”快捷方式，然后选择“ 其他疑难解答”。

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

If you’re having trouble connecting to your wireless display, try the following to fix things: Make sure your Windows 11 device supports Miracast.

Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.