Win 10 USB 3.0 を認識しない件

う～ん。　下記ためしているところです。

https://www.drivereasy.com/knowledge/fix-issue-after-upgrade-system-to-windows-10-usb-ports-dont-work/


Solution 2:


The Power Management would also be the cause of the USB problems. Windows is set to shut down your USB controller to save power by default, sometimes it won’t be able to power it back up. So try following steps to prevent Windows from “managing” power to your USB controller or the devices.

1. Open Device Manager.
2. Expand the Universal Serial Bus controllers branch.



3. Double-click the USB Root Hub device, and click the Power Management tab. (if there’s more than one USB Root Hub device, repeat these steps for each one.)



4. Turn off the Allow the computer to turn off this device to save power option, and click OK button.




Solution 3:

Go to Device Manager to check for the driver status
The problem most probably is caused by driver issues. Drivers may not be updated to work with Windows 10. If that’s the case, you can resolve the problem by updating the drivers.

1. In Device Manager, expand Other devices and Universal Serial Bus controllers.
2. If you see drivers with yellow mark under these two categories. You need to update the drivers. You can update the drivers manually.

Alternatively, you can use a driver update tool to help update drivers automatically. Driver Easy is one of driver update tools online. After you install Driver Easy, use it to scan your computer to detect all problem drivers. If there is problem with the USB driver, Driver Easy will detect it and recommend the new driver. With Driver Easy, the USB issue can be resolved easily.

Driver Easy has Free version and Paid version. You can use the Free version to download new drivers, but you are required to use the downloaded driver files to install the drivers manually step by step. And the download speed is limited. To save more time, you can use the Paid version. With Paid version, all drivers will be updated automatically. More over, you can enjoy free technical support guarantee. If you use the Paid version to try resolving the problem but the problem persists, you can contact us for further assistance. Paid version offers 30-day money back guarantee. You can ask for a full refund if you want within the guarantee period.

If the problem cannot be resolved, the USB ports might be damaged. You may need to replace the damaged ports. If the solutions above do not work for you, you can take your PC to the repair store to have it fixed, as the problem might be caused by hardware issues.