I recently tried to roll back the driver for a Prolific cable, but couldn't get my version of Windows 10 to allow this.  The tab for "roll back driver" is grayed out.  I tried to use the update driver, which I had downloaded the correct driver from Miklor, to load in.  It kept saying that I had the best driver.  Is there a workaround for this, now?  I finally found my FTDI cable, and then didn't have any problems.  But, I do have a couple of Prolific cables (no doubt fake), so, I would like to be able to use them.  Thanks, if anyone has a solution.