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Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

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If you see a yellow safety bar at the top of your message, then the message contains blocked attachments, pictures, or links to websites. Make sure you trust the sender before downloading any attachments or pictures or clicking any links.

Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

使用文件共享、云服务或其他解决方案发送大型文件，以便在 Outlook 中解决文件大小限制。

There are a few common scenarios in which Windows running on a PC might be discovered to be non-genuine during validation. Repairs. If your PC has been repaired, you might start to see messages on your desktop that Windows isn't genuine.

An eSIM lets you connect to the Internet over a cellular data connection. With an eSIM, you don't need to get a SIM card from your mobile operator, and you can quickly switch between mobile operators and data plans.

打开这些文件类型的其他方法. 还可以右键单击或双击.eml、.msg或 .oft 文件，以在新版 Outlook 中打开它们。 右键单击