Sometimes when your antivirus softwares is not updated, virus may infect your computer without your knowledge and you will just notice the abnormal slowing down of your operating system performance. Many of antivirus can not remove the virus from you system if you are already infected even you update your antivirus software as the antivirus detects that it as part of your system, so you have no choice but to remove the virus manually.

Here are the instructions on how to remove the virus manually, specifically for Microsoft Windows operating systems.

• Download HIJACKTHIS program, this is a small utility program that use to discover every program that is running in your computer, you can just google it, it is available in many download sites such download.com, soft32 and other download sites and its free.