一些用户可能会遇到一个问题，即他们的计算机在插入 USB 设备^{(plug in a USB device)}时会关闭或重新启动^{(computer shuts down or restarts)}。导致它的原因可能有很多——比如USB端口相互接触、主板问题、驱动程序问题、基本硬件故障等等。虽然很难得出确切原因的结论，但我们可以逐步解决问题，在每个级别隔离每种可能性。如果问题出在内部硬件上，我们可能必须将系统发送给硬件技术人员。

插入 USB 时 PC 关闭

以下是可能对您的 Windows 11/10 PC 有所帮助的解决方案：

1. 更新 USB 驱动程序
2. 检查连接到USB插槽的外部设备
3. 运行疑难解答
4. 禁用 USB 端口
5. 更换电源单元
6. 检查 USB 连接器。

1]更新USB驱动程序

卸载通用串行总线^{(Universal Serial Bus)}( USB )驱动程序，然后重新安装并检查。

1. Press Win + R打开运行^(Run)窗口。
2. 键入“^{(Type “)} devmgmt.msc”并按Enter 键^(Enter)。这将打开设备管理器^{(Device Manager)}。
3. 搜索USB驱动程序。右键单击^{(Right-click)}它们，然后单击“卸载^(Uninstall)”以将它们全部删除。
4. 保持计算机连接到互联网，最好通过LAN电缆，重新启动系统。
5. 重新启动时，计算机将尝试重新安装之前删除的所有驱动程序。

检查它是否解决了问题。如果不是，则继续执行步骤 2。

2]检查^(Check)连接到USB插槽的外部设备

某些^(Certain)设备（例如一些硬盘驱动器）具有很高的功率要求。如果您的 PC 无法处理它，它可能会崩溃。要隔离这种可能性，请尝试将外部USB设备连接到配置相同或更少的其他计算机。检查它是否适用于他们。如果不是，则外部设备有故障。

3]运行疑难解答

运行硬件疑难解答和USB 疑难解答，看看是否有帮助。

4]禁用USB端口

显然，这不是一个好的解决方案。但如果工作比连接USB设备更重要，可以考虑。如果上述步骤失败，则可能意味着问题出在硬件上。因此，您可以禁用USB直到将您的系统发送给硬件技术人员。程序如下。

1. Press Win + R并打开运行^(Run)窗口。键入“^{(Type “)} devmgmt.msc”并按Enter打开设备管理器。
2. 右键单击^{(Right-click)}USB驱动^(USB)程序，然后单击“禁用设备”选项。

   

重新启动系统并使用您的系统，直到它被送去进行硬件级维修。

5]更换电源单元

对硬件稍微熟悉的朋友可以自己试试这个方案。

1. 如果是笔记本电脑，请更换电源适配器并检查是否有帮助。
2. 更换系统的电源单元。

如果计算机是翻新的或二手的，则电源单元可能有故障。

6]检查USB连接器

那些可以对硬件进行故障排除（至少在基本级别）的人可以尝试使用连接器检查USB端口是否与主板紧密连接。除此之外，检查它们的金属触点是否相互接触。这可能是停电的原因。

阅读下一篇^{(Read next)}：Windows 计算机在播放或观看视频时关闭^{(Windows computer shuts down when playing or watching videos)}。

Windows computer shuts down when USB device is plugged in

Some users may face a prоblem where their computer shuts down or restarts whenever they plug in a USB device. There could be many reasons that may cause it – like USB ports touching each other, issues with the motherboard, issues with drivers, a fault with the basic hardware, and so on. While it is tough to conclude on the exact cause, we can troubleshoot the issue step by step isolating each possibility at every level. In case the issue is with the internal hardware, we might have to send the system to a hardware technician.

PC turns off when USB is plugged in

Here are the possible solutions that may help you on your Windows 11/10 PC:

1. Update the USB Drivers
2. Check the external devices connected to the USB slots
3. Run Troubleshooters
4. Disable the USB ports
5. Change the power supply unit
6. Check the USB connectors.

1] Update the USB Drivers

Uninstall the Universal Serial Bus (USB) drivers and then re-install the same and check.

1. Press Win + R to open the Run window.
2. Type “devmgmt.msc” and press Enter. This will open the Device Manager.
3. Search for the USB drivers. Right-click on them one by one and click on Uninstall to remove all of them.
4. Keeping the computer connected to the internet, preferably through a LAN cable, restart the system.
5. While restarting, the computer will try to re-install all the drivers which were deleted earlier.

Check if it fixes the issue. If not, then proceed to step 2.

2] Check the external devices connected to the USB slots

Certain devices like a few hard drives have a high, power requirement. In case your PC is unable to handle it, it might probably crash. To isolate this possibility, try connecting the external USB devices to other computers of equal or less configuration. Check if it works with them. If not, then the external devices are faulty.

3] Run Troubleshooters

Run the Hardware Troubleshooter and the USB Troubleshooter and see if that helps.

4] Disable the USB ports

Obviously, this isn’t a good solution. But if work is more important than connecting the USB devices, it could be considered. If the steps mentioned above failed, it probably means that the issue is with the hardware. Thus, you could disable the USB till to send your system to a hardware technician. The procedure is as follows.

1. Press Win + R and open the Run window. Type “devmgmt.msc” and press Enter to open the device manager.
2. Right-click on the USB drivers and click on the option to “Disable device.”

   

Restart the system and use your system till it is sent for hardware-level repair.

5] Change the power supply unit

Those who are a little familiar with the hardware can try this solution themselves.

1. Change the power adapter if it is a laptop and check if it helps.
2. Change the power supply unit of the system.

The power supply unit could be faulty if the computer is a refurbished or second-hand.

6] Check the USB connectors

Those who can troubleshoot hardware (at least at a basic level), can try checking if the USB ports are tightly connected to the motherboard using the connectors. Other than this, check if their metallic contacts are touching each other. That could be a reason for the power shutdown.

Read next: Windows computer shuts down when playing or watching videos.

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