How to remove a virus manually?

Computers have become the integral part our life, now a days apart from computer Internet has also become an integral part of our life. Therefore computer security have become important. Now a days it has been mandatory to have an anti virus software installed on the computer, but at times due to some reasons it if there is no anti virus installed on the computer, follow these steps to remove the virus manually.

• One need some basic knowledge of programming skills or at least syntax. Firstly before the virus removal we should take the data backup so that we would have not deleted any system files which are essential to run the system. Once the system backup has been taken we have to format the entire system to get rid of the virus totally.
• The other way of removing the virus manually is a bit lengthy, which need some technical expertise. first identify the virus program, in Internet we can gain knowledge on different virus files. Then you have to find the behavioral pattern of the virus and identify the virus. Then go to the task manager and stop the virus process. Then go to the system directory and delete the virus file.