How latest antivirus software detect and remove viruses

How latest antivirus software detect and remove viruses

The antivirus software is the strong tool which is necessary to be installed on the Windows computer. If you wonder that how they detect different threads and removes them, what they do in your system and if you need them for protecting your computer system or not, continue reading.

An antivirus software is an important section of the multi-layered protection system – even if you are an intelligent computer user, the continues flow of undesirable vulnerabilities from web, plugins, and risky windows increase the significance of the antivirus protection system.

On-access scan

The antivirus programs work in the background of your system, scanning each and every file of your computer. This process is usually called as the on-access scan, resident scan, background scan, real-time protection or anything, depending on the type of antivirus system you are using.

Full system scan

Due to the on-access scan, it doesn’t generally remain to carry out the full system scan. If you download something to your PC, and it carries any virus with it, the antivirus software generates a notification instantly.

The full system scan is quite beneficial for few things, but it’s important becomes double when you are done with the installation of an antivirus software as it makes it sure the absence of any virus on your computer.


The antivirus software also implies heuristics, which allows an antivirus software to recognize the new or edited kinds of malware, even without defining the virus files. For instance, if an antivirus software spots the fact that a program working on the computer is tending to use each EXE file of the system while infecting it by editing it, the antivirus software detects the presence of such fatal entry or unknown malware.

False positives

Due to a large number of antivirus programs available, it is possible that these programs may occasionally call a file is a virus or malware while it is really a wholly safe file. This is called as “false positives.” The antivirus making companies don’t make such mistakes like identification of the windows system files, 3rd party programs, or any antivirus program files itself as the malware.

The false positives can infect the system of a computer – such misidentifications usually end up in the outcome as when Microsoft Security Essentials recognized the Google Chrome as a malware, AVG infected the 64-bit editions of Windows 7.

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