How to Remove a Computer Virus
Computer viruses have harmed millions of computer around the world. Despite the rapid strides in the world of Information Technology, we are very much vulnerable to viruses. Viruses can cause losses of millions of dollars to companies. They are constant threats to your computer software and vital data. Therefore, it is important to know how to remove a virus from your computer. But, before we talk about the virus removal methods and strategies, it seems relevant to discuss some basic information about computer virus.
What is a Computer Virus?
A virus or computer virus is a small malicious software computer program that is intentionally developed to harm computer software. It spreads from computer to computer and interferes with the functioning and performance of a computer. A computer virus can infect and corrupt other software on your computer. It can destroy your disk drives. It can delete or erase data on your computer. Computer viruses spread through removable media, e-mail attachments and internet downloads.
Indications of Virus Infection
When a computer is infected with a virus, it runs slowly and becomes sluggish. There are problems with web-browsing. It fails to run smoothly, hangs, crashes, freezes, stops responding and gets frequent errors and restarts. There problems in accessing the files, disk drives and in printing files.
Types of Computer
Direct action virus, directory virus, resident virus, overwrite virus, boot sector virus, macro virus, polymorphic virus, companion virus, root kit virus, browser hijacker, file infector virus, fat virus, Trojans, worms, logic bombs are different forms of viruses. The characteristics of these viruses vary from virus to virus. Therefore, virus removal methods also vary from virus to virus.
Methods of Removing Virus from your Computer
There are viruses which are removed through antivirus programs. There are viruses which may require fresh installation. Therefore, we need to know the extent to which our computer has been infected. Though there are a number of recovery methods for the removal of virus from your computer, there is no perfect solution which guarantees 100% safety from viruses. However, there things you can do to reduce the chances of virus infection.
One of the simplest ways of removing antivirus from your computer is to go for a fresh installation of you operating system from scratch. You can use a recovery CD to recover your data before formatting your drive. I you don’t want to go for that option, running an anti-virus is one of the solutions to weed out virus from your computer. There are a number of antivirus software in the market. Some of them are Kaspersky Anti-virus, ESET Nod32, AVG, Avast, Microsoft Security Essentials and the like. You can purchase or download these antivirus programs from internet or buy from vendors. . But there are viruses which disable the running and installation of an antivirus. In that case you can download an antivirus to another computer and transfer it to you computer.
One of the recovery strategies is the use of System Restore. This tool restores the registry and critical system files to previous working points. But, there are viruses which corrupt this tool as well. In that case, you can reboot your computer, enter safe mode and then use system tools.
People who use registered versions of Microsoft operating system can access Microsoft’s website to run a free scan. In addition to the Microsoft website, there are other websites run by antivirus software companies. These websites also offer free scanning with limited cleaning and disinfecting functions.
These are some of the basic strategies; there are others which may require special skills to remove viruses from your computer. In order to save your computer from future threats, install an updated antivirus software program. Open attachments that are safe. Don’t expose your computer frequently to USB drives of other people.