(BTW - Their site is overwhelmed and it WILL take a long time to connect after you click on a link.)
MS Security Essentials can't be turned off. That's to prevent a virus from turning off to infect your computer. You have to uninstall it, and that would be noticeable by even the stupidest people.
After Prepar3d V2 was re-installed and working as well as it can (I can't save any setting changes, but that's another story), I went to download & re-install MS Security Essentials.
So I type it into Google. But from there on I was as bad as my wife. I clicked on the first link!
After a click or two, I realized that this wasn't the standard MS procedure, so I canceled the install.
Too late!
In the few seconds that it was running it took over my browser, and installed several malware/viruses.
I've removed what I can, and now have Malwarebytes Anti-Malware doing a scan. It just completed.
Google used to have a reporting procedure, but I can no longer find it. I'm not sure that you can exclude or report paid advertisements anyway.
Bottom dwelling scum!
From malwareremovalguides about pup.optional.searchprotect.a.
""PUP.Optional.SearchProtect.A is a specific detection used by Malwarebytes Anti-Malware to indicate and detect Potentially Unwanted Propgrams (PUP). When Malwarebytes Anti-Malware detects PUP.Optional.SearchProtect.A you do not immediately have to worry, because it is not a virus or other malware. But only a unwanted program classified as PUP because it has a bad reputation or behavior. And in most cases the program is installed whitout your knowledge, therefore detects Malwarebytes Anti-Malware this application as PUP.Optional.SearchProtect.A ""
From deletemalware about pup.optional.conduit.a.
"PUP.Optional.Conduit.A which although not technically a virus is still something that will cause problems for both you and your computer."
I still use Malware Bytes, CCCleaner and Glary Utilities on the side. As a side note, If I can remember just a few, I've had Norton, AVG, McCafee, MS securities and a few others. I have to say, Norton was the fattest pig of them all, being the most invasive and cumbersome antivirus I have ever had. That was ten years ago, so, maybe Norton has improved since then? 
