Removing a virus properly is not for the fainthearted and takes experience and know how. In fact your very system may not let you just run a virus removal tool. Often a virus can lock up your system completely or may cover the screen and prevent you from further progress. Smaller infections can be removed by running a scan from your Anti Virus software. Malware infections can be removed by running the free version of Malware bytes (www.malwarebytes.org).

A virus is really a program that is designed to carry out the wishes of its designer and so defeating a virus requires some understanding of what it is about.

So, for proper, full removal of a virus you should always seek help from a professional to be sure removal is complete. Many types of virus and malware have built-in routines to prevent you from fully removing them and indeed to begin hiding themselves further into your system.