Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
FatPickle Toolbar is an adware search toolbar that has been known to install itself without user consent. FatPickle Toolbar will send searches to the FatPickle search engine and will display advertisements on your PC.
Technical details (How to remove FatPickle Toolbar(pop up))