Here is the procedure to remove aartemis (or Artemis), which is an unwanted program that displays advertisements and installs invisible toolbars (toolbars) on your computer. This program installs by itself along with other mostly free software you download from sites such as Softonic or 01net. They modify the parameters of internet browsers (homepage and default search engine) almost systematically.
So, you’re infected by aartemis if you have a home page or search that looks more or less like the one below, and you no longer get to set up your usual homepage.