Fix: Computer turns off when USB device is plugged in

Some users may experience problems when their computers shut down or restart whenever they plug in a USB device. There can be many possible reasons which can cause problems like USB ports touching each other, problem with motherboard, problem with driver, error with basic hardware, etc.While it is difficult to make exact conclusion about Cause, we can step-by-step isolate each ability at every level. In case there is a problem with internal hardware, we may have to send the system to a hardware technician.

PC turns off when USB is inserted

Here are solutions that can help you.

1] Update USB Driver

Uninstall Driver Universal Serial Bus (USB) and then reinstall and check.

  1. Press Win + R to open a Run window.
  2. Type “ devmgmt.msc ” and press Enter . This will open Device Manager .
  3. Search for USB Driver . Right click on them one by one and click Uninstall to remove all of them.
  4. Keep the computer connected to the Internet, preferably via a LAN cable, and reboot the system.
  5. While restarting, the computer will attempt to reinstall all previously deleted drivers.

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

2. Check the external devices connected to the USB slot

Some devices such as several hard drives have a high power requirement. In case your computer is unable to handle it, it will likely crash. To isolate this possibility, try connecting external USB devices to other computers using less configuration. Check if it works with them. If not, then the external device is faulty.

3. Troubleshooting

Start the ” Troubleshooter ” Hardware and Device Troubleshooter and see if that helps.

4. Disable USB port

Obviously, this is not a good solution. But if the work is more important than connecting the USB devices, then it can be considered. If the steps mentioned above fail, it probably means the problem is with the hardware. So you can disable USB until sending 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 Device Manager.
  2. Right click on the USB Driver and click the option to “ Disable device ” to turn off the device.

Máy tính tắt khi cắm USB

Reboot the system and use your system until it is sent for hardware level repair.

5. Change the power supply unit

Those who are a bit familiar with the hardware, can try this solution on their own.

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

The power supply unit may be faulty if the computer has been upgraded or reused.

6. Check the USB connections

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