I've had things like that in the past. Most likely you downloaded something somewhere that installed the adware on your computer. The adware puts ads anywhere you go, and you mostly go to Subsim.
The first thing to do is to google the name of the adware and include the word "adware" or "virus". This will tell you if it's a common problem and if anyone has a solution. Malwarebytes is good at getting rid of this sort of thing. Also your computer's Uninstaller should turn up items with the names in question, and uninstall them. You might need something that looks for rootkits and a good registry cleaner. Iobit Uninstaller does both when you use it to uninstall programs.
Finally, when you have computer or malware problems the best place to report it is in Subsim's computer hardware and software forum.
http://www.subsim.com/radioroom/forumdisplay.php?f=235