Thanks so much everyone! There're both good & not-so-good outcomes resulting from this experience. The not-so-good is that, although I now have a clean install of Windows 10 on my computer, I just noticed that I once again have that pesky creator's update trying to install over-&-over again. So I'm right back where I started from to begin with!

The good outcome is that I've now connected with a local computer repair place that should be able to help me keep my old jalopy of a computer up-&-running. So that's a plus since I really know almost nothing about computers in general & mine in particular other than how to operate it when it's running smoothly.