Windows 10 Internet Connection Lost/disabled

[New Judge]

I have notebook running W10 (not an upgrade).

Access to the internet (via my wireless hub) is lost. I have no networks visble when I try to connect to the internet (I usually have half a dozen -my own and the neighbours); when I look at "Network and Internet" WiFi is shown as "Off" and changing it to on makes no difference (it simply reverts to "off" again" when I close the window.

I've looked on help sites and it seems there is a problem like this following an upgrade but my machine had W10 from new.


Any ideas?

TIA

[hc4361]

I have an Android LG, Eddie, and I can share the mobile data with a laptop or tablet by either:

Connect by usb cable, tap settings (on the phone), networks, connectivity, tethering

without the cable, as above but instead of 'tethering' tap wifi hotspot

[New Judge]

SUCCESS !!!

I managed to download the files 'Chico suggested and get them across to the crippled machine. When I ran the programme it gave me an option to "repair" which I thought I'd try first rather than uninstalling and reinstalling. That did the trick.

Thanks to all for your valuable contributions. I'm in for a few Brownie points as it is Mrs NJ's machine! I can't share those with you and unfortunately I can't award you all best answers so ba to 'Chico for coming up with the eventual cure.