Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

如果在连接到网络时遇到问题，并且无法连接到 Internet，可在以下方法中尝试Windows。 请尝试以下操作来排查第 11 Windows中的网络连接问题。 确保 WLAN 已打开。 选择">设置>网络&"，然后打开"Wlan"。 接下来，选择" (>) Wlan"旁边的"更多选项"，然后选择"显示可用网络"。

首次连接到Windows 11中的Wi-Fi网络时，默认设置为公共网络。 这是 建议 的设置。 但是，可以根据网络和要执行的操作将其设置为公共或专用： 公用网络 (建议) 。 将此用于在家、工作或公共场所连接到的网络。 在大多数情况下，应使用此。

In the Step 1: Select condition(s) list, select the check boxes for any options that you want, and then click Next.. If you do not select any check boxes, a confirmation dialog box appears. If you click Yes, the rule that you are creating is applied to all messages that you send.

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.

Troubleshooting: I don't see Automatic Replies. If you don't see Automatic Replies after selecting File, you're probably using a Gmail, Yahoo, or other POP or IMAP account that doesn't support the Outlook Automatic Replies feature.You can set up a rule that will reply to incoming messages—if you leave Outlook running while you're away.

Training: Sign in to office.com with your Microsoft personal, work, or school account. Watch this video to learn how.

有些网站专为与 Internet Explorer 一起使用，它们具有 Microsoft Edge 等新式浏览器不支持的功能。 如果你需要查看其中的某个网站，可使用 Microsoft Edge 中的 Internet Explorer 模式。

对于以太网连接 在任务栏上，选择“以太网网络”图标 > 以太网网络连接。 在“以太网”下选择以太网网络连接。 在“属性”下，查找“IPv4 地址”旁边列出的 IP 地址。 打开Wi-Fi设置 订阅 RSS 源 需要更多帮助 ...