Using a suggestion from Shubham Chaubey, I did a clean reboot--uising the settings for 8-8.1, since there are none for 10--and installed Live Mail. (My old e-mail client, before The Curse of Windows 10 wiped it out.)

I still cannot send or receive e-mail. The following error msg appears: (Port Numbers are 110 and 25. Have ISP info if nded.)

Error-0X800CCC0E

Socket Error-10061.

I researched the socket error online; it seems you have to buy expensive software to fix it?

I hope someone there has a better idea!

Thanks to Shuham Chaubey for trying. It didn't work, but probably didn't hurt either, lol.

Thank you for being here to help those of us who are not brilliant geeks! ;-)