Also see if the IUSB3MON service is running and kill it, before the uninstall. Make sure you dont have anything plugged in your USB 3.0 ports, just a mouse and keyboard in your 2.0 ports.
This article may help you as well for the uninstall.
Iāve got admin rights. I tried the command line but I get āC:\Programā is not recognized as an internal or external command, operable program or batch file
Yeah. Says run is not recognized as blah blah blah. Iām not good with cmd. Mind showing me how I would start it out? Just assumed run and then rest of the line.
I finally got it uninstalled. I had to write it out as start āC:\Program Files (x86)\Intel\IntelĀ® USB 3.0 eXtensible Host Controller Driver\Uninstall\setup.exeā -uninstall. Time for the moment of truth.
Try re-enabling the handoff, only thing i can think of is when you removed the drivers that disabled all your ports you removed something that wasnt supposed to be removed.
Have your tried to do a system restore to before you disabled your ports? Then remove the 3.0 drivers via the command?
Also make sure you mobo USB drivers are all up to date.