USB Type C 或USB-C 连接^{(USB-C connection)}主要用于连接手机、扩展坞或为 Windows 10 PC 充电，但一些不可预见的情况（如硬件-软件组合不兼容）可能会破坏连接。在这种情况下，Windows PC 屏幕上显示的通知可以帮助您查明问题并尝试一些提示来快速解决问题。

USB-C 无法在 Windows 10 上运行

在开始之前，请确保您已在设备上安装了所有最新的Windows更新。如果您收到此 USB 端口不支持 DisplayPort、Thunderbolt 或 MHL^{(This USB port doesn’t support DisplayPort or Thunderbolt or MHL)}或USB 设备在连接到此端口时功能可能受限^{(The USB device might have limited functionality when connected to this port)}等消息，请使用其他USB 端口^{(USB Port)}进行连接。如果这没有帮助，请继续。

1]检查未知设备

如果您的 Windows 10 PC（或手机）连接到的^(Phone)USB设备报告了问题，或者设备驱动程序存在问题，请打开设备管理器^{(Device Manager)}并通过检查标记为黄色感叹号来查找导致问题的未知设备^{(unknown device)}设备的符号。之后，只需选择设备，选择其单击属性^(Properties)并检查设备^(Device)状态下显示的状态。

如果显示错误代码，请检查设备管理器错误代码^{(check the Device Manager Error code)}并使用它来解决问题。

2]检查充电

USB-C无法在Windows 10上运行的另一个可能原因可能是PC 充电不足^{(insufficient PC charging)}。这可能发生在，

• 充电器与您的 PC 不兼容。
• 充电器的功率不足以为您的 PC 充电。
• 充电器未连接到 PC 上的充电端口。
• 充电线不符合充电器、PC的电源要求。

要解决此问题，请始终使用 PC 随附的充电器和数据线，并确保将充电器连接到 PC 上的USB-C充电端口。此外，尝试使用一罐压缩空气清洁 PC 上的USB-C端口。

3] 支持吗？

USB 或 Thunderbolt 设备功能^{(USB or Thunderbolt device functionality)}可能会受到限制。连接的设备或加密狗极有可能具有您的 PC（或手机）可能不支持的USB-C新功能，或者连接的设备或加密狗未连接到 PC 上正确的USB-C端口/其他备用模式^{(Alternate Mode)}设备或加密狗连接到您的 PC（或手机）。

要使备用模式^{(Alternate Mode)}正常工作，PC 和连接的设备或加密狗上的硬件和软件必须支持备用模式^{(Alternate Mode)}。某些备用模式^{(Certain Alternate Modes)}可能还需要特定的USB-C电缆。因此，请确保设备或加密狗已连接到PC 上支持正确备用模式的^{(Alternate Mode)}USB-C端口。例如，如果您要连接Thunderbolt 备用模式^{(Thunderbolt Alternate Mode)}设备，请确保它已连接到PC 上支持Thunderbolt的^{(Thunderbolt)}USB-C端口。

此外，请确保您的 PC 和数据线支持与所连接设备相同的USB-C功能。

4]检查DisplayPort备用模式

DisplayPort/ MHLDisplayPort/MHL connection may fail正常工作。如您所知，DisplayPort 交替模式可让您的项目视频、其他视觉内容和在支持^{(DisplayPort Alternate Mode)}DisplayPort的外部显示器上播放音频。还有其他模式是交替模式^{(Alternate Modes)}。这些包括，

1. MHL – MHL 交替模式可让您在支持^{(MHL Alternate Mode)}MHL的外部显示器上投影视频和播放音频。
2. HDMI – HDMI 交替模式可让您在支持^{(HDMI Alternate Mode)}HDMI的外部显示器上投影视频和播放音频。

要解决此问题引起的问题，请确保您的 PC、外接显示器和电缆支持DisplayPort或MHL备用模式，并且设备或加密狗直接连接到您的 PC。

5]运行^(Run)硬件^(Hardware)和设备疑难解答^{(Device Troubleshooter)}

运行硬件和设备疑难解答 或Windows USB 疑难解答并检查它是否有帮助。这些疑难解答^{(Troubleshooters)}程序会检查与计算机的硬件或USB连接是否存在任何已知问题并自动修复它们。

相关阅读^{(Related read)}：无法识别 USB 设备^{(USB Device is not recognized)}。

希望有帮助。

USB-C not working, charging or recognized on Windows 10

Primarily, a USΒ Type C or USB-C connection is used for either connecting mobile phones, docking stations, or charging your Windows 10 PC, but some unforeseen conditions like incompatibility in hardware-software combination can upset the connection. In such cases, notifications displayed on your Windows PC screen can help you pinpoint the problem and try few tips to fix things quickly.

USB-C not working on Windows 10

Before you begin, make sure that you have installed all the latest Windows Updates on your device. If you receive messages like This USB port doesn’t support DisplayPort or Thunderbolt or MHL or The USB device might have limited functionality when connected to this port, use a different USB Port to connect. If this does not help, proceed.

1] Check for Unknown devices

If the USB device that your Windows 10 PC (or Phone) is connected to, reports an issue, or there’s a problem with the device driver, open Device Manager and find the unknown device causing the problem by checking for a yellow exclamation marked against the symbol of the device. After that, simply select the device, choose its click Properties and check the status displayed under Device status.

If it displays an error code, check the Device Manager Error code and use it to troubleshoot the issue.

2] Check Charging

Another likely reason for USB-C not working on Windows 10 could be insufficient PC charging. This may occur when,

• The charger isn’t compatible with your PC.
• The charger isn’t powerful enough to charge your PC.
• The charger isn’t connected to a charging port on your PC.
• The charging cable doesn’t meet the power requirements of the charger, PC.

To fix this, always use the charger and cable included with your PC and make sure you’re connecting your charger to the USB-C charging port on your PC. Also, try using a can of compressed air to clean the USB-C port on your PC.

3] Is it supported?

The USB or Thunderbolt device functionality may be limited. It is highly likely that the connected device or dongle has new features for USB-C that your PC (or phone) might not support or the connected device or dongle isn’t connected to the correct USB-C port on your PC/ additional Alternate Mode devices or dongles are connected to your PC (or phone).

For an Alternate Mode to work correctly, the hardware and the software on the PC and the connected device or dongle must support the Alternate Mode. Certain Alternate Modes might also require a specific USB-C cable. So, make sure the device or dongle is connected to the USB-C port on your PC that supports the correct Alternate Mode. For example, if you’re connecting a Thunderbolt Alternate Mode device, make sure it’s connected to the USB-C port on your PC that supports Thunderbolt.

Also, make sure your PC and cable support the same USB-C features as the connected device.

4] Check DisplayPort Alternate Mode

The DisplayPort/MHL connection may fail to work. As you are aware, the DisplayPort Alternate Mode lets your project video, other visual content and play audio on an external display that supports DisplayPort. There are other modes are Alternate Modes as well. These include,

1. MHL – The MHL Alternate Mode lets you project video and play audio on an external display that supports MHL.
2. HDMI – The HDMI Alternate Mode lets you project video and play audio on an external display that supports HDMI.

To fix problems caused by this issue, make sure your PC, the external display, and the cable support DisplayPort or MHL alternate modes and the device or dongle is connected directly to your PC.

5] Run the Hardware and Device Troubleshooter

Run the Hardware and Device Troubleshooter or the Windows USB Troubleshooter and check if it helps. These Troubleshooters check the hardware or USB connection to the computer for any known issues and fix them automatically.

Related read: USB Device is not recognized.

Hope something helps.

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