There could be several reasons why the USB ports aren’t working, please ensure to: Update the USB drivers: go to Start and open the Device Manager > Unfold the Universal Serial Bus controllers > Right-click on USB Root Hub > Update driver > Select [Search automatically for updated driver software]; Disable the power savings mode: go to Start

USB 3.0 ports stopped working on Samsung PC. Sometimes a Windows update may install generic or incompatible drivers for the USB 3.0 ports. Often this will lead to the ports able to power a connected device, but not communicate with it. Installing the correct drivers will restore the ports to normal operation.
Do not suspend or hibernate. Remove all external peripherals connected to the system. If no external peripherals are connected, proceed to step 3. After unplugging, press the Power button for 30 seconds to drain any residual power from the motherboard. Press the Power button to turn on the system and allow it to boot fully. Test USB-C port. Aug 14, 2017. Solution. #10. you could try to get a usb 2 pcie slot plate and connect 1 header to it (2 usb 2.0 ports) and see if they work from that connection, it is possible the chip controlling the onboard usb ports is dead.
This allows the USB hub driver to suspend power to an individual USB port without affecting the other ports. Just enable the setting. FWIW, my mouse and external drives always have power, although it's just a tiny bit. Without that I wouldn't be able to 'wake' my computer by moving the mouse, or wake my hard drives for a scheduled backup.
S1 (powered on) - USB power is on by default with either AC or battery only. S3 (Standby) - Battery or AC. S4/S5 (Hibernate/Powered down) - AC only. Depending on the model of computer and BIOS revision, the computer allows the battery to discharge down to 50%. At which point the PowerShare feature is disabled.
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pc usb ports not working