How to fight it: the fact that adware so often comes bundled with "entertainment" software, most notably the file-swapping program Kazaa, is a very good reason to separate business from personal when it comes to computing. But adware can sometimes comes bundled with non-entertainment software, such as search tools or cracks of legitimate business softwareBe very suspicious of any software that comes bundled with other software.: malware may come bundled with a legitimate piece of software the user actually wants, such as a game or emoticon. The malware is merely labeled "companion software," without any indication of what it will do.

Adware is so tricky that trying to uninstall it by yourself could be like a trip into the Matrix. Luckily, there are good anti-spyware programs that tackle adware as well–after all many adware programs are also spyware since they monitor your internet usage.