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

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