virus definitions contain the information about malware which can be used to identify security threats. While scanning a PC, Virus definitions tell the antivirus File to recognize viruses. When antivirus software is installed a file containing a set of virus definitions is also installed.
To protect the computer from the must update antivirus software regularly. Most antivirus programs include an Auto- Update feature that enables the antivirus program to free download profiles of new viruses so that it can check for the new viruses as soon as they are discovered.
Is an up gradation of already installed antivirus software. Update virus definitions can protect and clean the PC from the most recent computer viruse and other threats. this version V2.6 shows virus definition Update software downloading process.