Hello! I have recently been downloading files from Solidfiles.com. The site opens a pop-up site when you click it the first time so I just close it quickly when that happens. I am no longer downloading but the same pop-up site now opens on other sites I regularly go to and in addition to that, a pop-up ad shows up from the bottom right of my screen. I close it too but it always comes back. I hope you can help me. Thank you. I have Windows Defender as my antivirus and Malwarebytes installed.