You can see the available drivers for that device in the driver folder of that device.
Now, select Browse my computer for driver software option.
Then right-click on the unknown device and choose the Update driver option.
On that window, click on the unknown device for which you need the driver.
Go to Device Manager by searching it in the windows search box.
Well, if you are facing this error, then here is the possible solution for it. Therefore, you need to download the driver for your USB\VID_138A&PID_003C&REV_0086 device to solve this issue. This error says that there is an unknown device, and the driver for this device is not found. Many people have got this error after updating their operating system to Windows 7 or Windows 10. Usually, this error occurs on HP PCs after updating the Windows Operating system to the latest version.