I knew I might be in trouble when I clicked on a Google search result and the page that opened was crawling with ads. Then the page clicked-over to a different site on its own: To an article in Vogue I believe. The article itself didn’t look especially threatening, but that’s not a site I visit – and most importantly, I hadn’t done anything to be taken there.
Everything seemed fine after that, but later I clicked the icon to open Microsoft Word and received a UAC (User Account Control) warning from Windows indicating that a program it didn’t trust was trying to start. Any time a Microsoft application isn’t recognized by a Microsoft operating system, something is clearly amiss. I’ve used Word zillions of times with no issue like this, which reinforced that something was wrong, so I didn’t allow it to start. The same thing happened later when I started Outlook, and then Java, underscoring that I had a serious problem.