To minimize malware and browser hijackers, I have had success installing and keeping updated (very important, since malware is constantly evolving and anti-malware programs have to play catch up) the following cleansers: Ad-Aware Spybot Search and Destroy HijackThis! CWShredder Microsoft Anti-Spyware These particular programs are all free and reputable, unlike a number of relatively expensive malware "removers" that are actually malware installers. For better info, including user reviews and download links, vist the spyware information section at www.download.com. Good luck.