Here is a list of steps to troubleshoot a malfunctioning USB port:

1. Make sure the USB device is properly plugged into the port.
2. Unplug the device and then plug it back into the port.
3. Try plugging the device into a different USB port.
4. Reboot your laptop.
5. Check if the USB device drivers are up to date.
6. Check System Manager’s Automatic Driver Updates feature.
7. Reset the laptop's BIOS.
8. Check if the USB port is physically damaged.
9. Replace the USB port if necessary.