I wanted to get the specific step-by-step of TcatHF's procedure in there for 70+ year-olds. So I'll be able to come back & read it myself in a few more years. And PCRSCOMPUTER was not showing until I did it. Apparently, it doesn't need for the Network to be Private for that, either.
Now that I've closed & reopened File Explorer, PCRSCOMPUTER has disappeared again...
And that's the way I like it, actually, having just one computer as I do.