Thanks for the update Holly! Earlier, you had said the Update was KB4566783 but are you saying it is KB4566782. Can you double check on that for me? All you have to do, is go to the Settings from your Start menu and go to Update & Security and in there, you can check to see your latest installed updates. It will tell you if that number ends in 782 or 783.
You also had said you had a relative who was going to check that for you. If so, what was his thoughts as to the Update not installing earlier?