If this is not the right forum, I hope someone will redirect me.
I have a friend for whose computer security I am, by default, more or less responsible. He has had a stroke which has compromised his already limited computer skills. He is receiving, every day, countless unwanted E-mail advertisements for Viagra/Cialis. Each comes from a different purported sender (all of them pretty obviously fake and all emanating, when I dig into it, from eastern Europe, I think the Czech Republic). Obviously he wants to stop this.
Various people have told him he probably has a virus. He is using Webroot antivirus (installed by Best Buy/Geek Squad where he bought the computer). I have run a Webroot scan, a scan with Malwarebytes 3, and a scan with the ESET Online Scanner, and found nothing. The curious behavior of his system when he was typing mail, etc., - behavior which prompted some folks to think "virus" - turned out to be because he did not realize he was accidentally hitting the "Insert" key when typing. Quite perplexing when you don't know what that is or how it works. So unless I am completely off base I think what he needs is an ad blocker and/or spam blocker. Question arising, what is the best one for this situation? Maybe Webroot has such a function - I am not really familiar with that software and he himself has no idea of such things.
The computer is a recent (about two years old) HP desktop, running fully updated Windows 10 (Pro I think). He has a WildBlue legacy Internet connection and is using their E-mail client software. The WildBlue E-mail user interface is pretty bare-bones and I think he finds it confusing, but I haven't so far been able to talk him into changing (he has Office 365 installed, but not much idea of how to use it). His requirements are simple - mainly, reliable ad-free E-mail communication.
His Webroot is a paid subscription. He also has MBAM installed (by me; it has now defaulted to the free edition though I hope to persuade him to change that). He has an enormous investment in photos and videos (he has been an internationally recognized dog show judge, videographer and more) which I hope to persuade him to back up. So far he has firmly resisted that idea, saying he could never understand how to do it. I would have to set up something almost completely automatic. But that is another issue. The immediate need is to get rid of the hundreds of Viagra/Cialis advertising E-mails he receives every day.
Thanks for suggestions!