Hello CAGW Welcome to the forum,
Before looking at my answer I would advise you to make sure that all drivers
on your PC are up to date I have heard of this problem being caused by the Nvidia Graphic driver
conflicting with old USB device drivers.
Yes you should uninstall everything, bear in mind that some USB drivers may not be included in Windows and may need to be reinstalled afterwards ie Printer Drivers or in my case I have Renesas USB3 drivers installed.
Are you absolutely sure you have followed the Tutorial with the Infcache.1?? Have a look here; Take Ownership Shortcut
Take good heed of the warnings!!