A few weeks ago I found that Hari’s computer had StarForce Copy Protection installed on it, after reading it about it on BoingBoing. It was left over from a game that she used to have but had since uninstalled, since uninstalling a game that bundles Starforce’s copy protection does not remove the protection as well.
By following these instructions I was able to remove it, since its effects on a system are worrying. Essentially it can make a system much more vulnerable to virus infections, and if the copy protection software doesn’t like what you are doing it can reboot your system. It can also cause stability problems and system slowdowns, according to Wikipedia and its cited sources.
(Note: Starforce staff have a habit of attacking sites where information criticisng their product is published. Please bear this in mind when reading the comments)