Originally Posted by Aimee G

That being said, it sounds like what your dealing with is a redirect virus. A website/platform/host gets hacked & instead of going to the website you intended, it redirects you to one (or you get a pop-up) that tells you it's scanning your computer & you have tons of bad stuff on it. Do not click on anything, if you can't get off that site, shut down your computer. Clear your cookies, clean your computer & run a scan (in safe mode) With a redirect, there's not much more you can do about it; it's usually not on your end.