HijackThis - Security Tools
HijackThis is a tool for find any settings changed by spyware, malware and other malicious software
HijackThis is a free tool for getting report of the registry and settings of computer.
Scan result may give the user to think which is the correct setting. If the user has any doubt from the report then they can upload the report and they give the full analysis based on your computer settings report.
If any suspicious links are in report go to google and search that link after that only you remove that link.
Reference: http://free.antivirus.com/hijackthis/
Job oriented