Hi, thanks for the help.
I've had 'discoverable' toggled off for some time, and toggling them on or off doesn't seem to change things. Available connections are still listed on my task bar (including, periodically, that of my neighbours), and also under the settings > WIFI tab.
The superfluous connections aren't listed under "Manage Known Networks", because i removed them previously, hoping my computer would no longer try to connect to them.
The only trouble I have is that I believe my computer is trying to connect to the listed networks, which results in frequent drops from the network I do use. The list has "connect automatically" options, which should solve the problem, only the box will not remain unchecked.
Before posting this, I searched and found many similar complaints expressing the same problem, so I don't think it is a virus. The responses, however, even by official reps were vague, incorrect, unfinished and didn't actually seem to understand the problem, or offered unreasonably complicated workarounds requiring third-party software. I am wondering, if its an actual recognised bug with Windows10, and what the official work around is, or if its not, then what has gone wrong.
Cheers.