This free privacy tool scans your memory and your drives for tracking, data-mining and advertising components. If some of these unwanted items are detected on your computer (which is often the case), Ad-Aware lets you choose to remove or quarantine them. This freeware is very efficient at eliminating all the known adwares and spywares because it can be updated with the latest signatures via the built-in update utility. The only lack of this free version is that it doesn't offer a real-time protection.