I'm currently on a computer that has a couple of problems. First, on top of my browser when I open up a new page it keeps saying that I have viruses and internet problems. Along with that whenever I get to a certain page it says "Internet Page Connection Error" and that I should download some programs to help the computer. Obviously, I didn't actually download any of this stuff. On top of that the desktop image has also changed to "Warning Dangerous Spy" with other words written along and it doesn't let me change that. I tried disabling that using the Display options but that didn't work any help at all will be nice.

Edit: Currently following the 8-steps I'll update that as soon as it finishes.