如果在连接到无线显示器时遇到问题，请尝试以下方法进行修复： 确保Windows 11设备支持 Miracast。若要在电脑上检查，请按 Windows 徽标键 + K。 如果你的设备不支持 Miracast，你可能会看到一条消息，指出你需要使用电缆连接外部显示器。

Contact Support For help with your Microsoft account and subscriptions, visit Account & Billing Help. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option. Admins

Change Teams settings. Teams will reflect the same date and time format as your device's language, date, and time settings. For example, if your device's display language is set to English (United States), the date and time in Teams will display the regional format used in the United States.. Change your language settings

The SUMPRODUCT function returns the sum of the products of corresponding ranges or arrays.The default operation is multiplication, but addition, subtraction, and division are also possible. In this example, we'll use SUMPRODUCT to return the total sales for a given item and size:

Junk e-mail messages, also known as spam, can be a nuisance in your Inbox.The Junk E-mail Filter in Outlook identifies messages that are likely junk and moves them to the Junk E-mail folder. You can easily change the level of junk email protection or automatically delete junk email.

As you browse the web, you'll see an icon in the address bar that indicates the security of the connection to the site you're visiting. This icon helps you determine if you can safely send and receive information from the site.

Turn on Find my device. When you set up a new device, you can decide whether to turn on or turn off the Find my device setting. If you turned it off during setup and now want to turn it on, make sure your Windows device is connected to the internet, has enough battery power so it can send its location, and that you're signed in to the device using your Microsoft account.

Surface app. With integrated help and support, you can find solutions to questions and issues directly from the Surface app. You can easily access device, charging, and warranty information and view and customize your connected Surface accessories.

This article is for people who want to control their PC and author text using their voice with Windows. This article is part of the Accessibility support for Windows content set where you can find more information on Windows accessibility features. For general help, visit Microsoft Support home. To complete the initial set up voice access in Windows, you need an internet connection.

注意: 警告：注册表编辑器使用不当可能导致严重问题，可能需要重新安装操作系统。Microsoft 无法保证可以解决注册表编辑器使用不当引起的问题。 在对注册表进行任何更改之前，请备份注册表。