If you feel like you’ve been the target of a technical support scam, you can help Microsoft stop cybercriminals by reporting it. Learn more about avoiding technical support scams.

If you run into problems trying to connect to a Bluetooth device, here are some troubleshooting steps to try. Note: For general info about how to connect a Bluetooth device to your PC, see Pair a Bluetooth device in Windows.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

有些用户可能在通过 Skype 共享媒体(图像或文件)时遇到问题。媒体发送可能延迟或根本不发送。

Check the Xbox services, games, and apps for any service outages.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link.

如果你在游戏或群中无法在线听到好友的声音，或者无法主持或加入多人游戏，则你可能遇到了与网络地址转换 (NAT) 相关的问题。如果你已确认不存在可能影响你玩游戏的服务警报或中断，请参阅解决 Xbox 360 NAT 错误，以获取解决该问题的帮助。

Most Xbox One games are playable on Xbox Series X|S. Additionally, games can look and perform better, and select titles offer faster frame rates, auto HDR, and improved screen resolution. Things to keep in mind. A small number of titles playable on Xbox One aren't compatible with Xbox Series X|S.

当您使用 Microsoft Teams（免费版）的社交功能时，您所在组织的其他最终用户可能会看到您的某些活动。. 如要了解有关社交功能和其他功能的更多信息，请查阅我们的文档和帮助内容页面。. 微软不对您组织的隐私或安全实务承担任何责任。. 作为微软在线服务的 ...

The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity.