Spybot Search and Destroy (Free Edition) is a free security software, an excellent antispyware, anti-adware removal tool. It will detect and remove most of these threats: Adware files, Trojans, Dialers, PUPs, Browser Hijackers (unwanted toolbars), Keyloggers, Rootkits and other malware or junkware files can infect your computer. It will also allow you to fix the Windows® Registry inconsistencies, to be more specific - those related to malicious applications that you are installing and adware.
Love Spybot 2.0. After 2 weeks of struggling trying to remove Coupon Dropdown, I finally tried Spybot 2.0 and it was the only one that worked--after trying Malwarebytes anti-Malware, McAfee and many others.
This is a great fully-featured security application…
Pros: Host File Protection, Browser Guards, Realtime Spyware and Malware Protection, Process Control, Deep System Scanning, and many others you normally wouldn’t find in a traditional security software suite.
Cons: The only con I can rightly say is that it consumes a lot of system resources and some of the scans can take a while, depending on the size of your system and the configurations of the scan you choose.
Summary: This is a robust security application that is an excellent supplement to existing security software and especially useful for those whom still use the Internet Explorer browser, because of the protections it offers, including that of the host file as well as a user’s homepage.
Even if you don’t want to pay for the full version, the free version is still worth the download and is a formidable contender in the world of antimalware software.