If your antivirus software is unable to quarantine a detected virus, it is either because of A) An error was encountered while moving the virus to quarantine on the hard disk, or B) The virus is putting up a fight against your antivirus software. When this happens, delete the virus or send it to the developer of the antivirus software if possible for analysis.
Yes. You can download antivirus software (there are free ones can do it), update the virus definitions, scan your computer with it, and delete/remove it or quarantine it.
Signatures are pattern or guidelines of an Antivirus in detecting threats. If the system recognize the same pattern as a signature database, it will be detected as threat. Some antivirus will automatically quarantine this kind of file.
Mirror is nothing utility in antivirus software
Application software
Antivirus software will notice about the virus,malware,spyware etc
"antivirus" is protective software designed to defend your computer against malicious software.
One can download eTrust antivirus software for free from sites such as CNET download, bestshareware, or techserious. It is reviewed by CNET as being a dependable antivirus software.
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NOD32 antivirus software offers a small file size when compared to other antivirus brands. It has also failed to miss an "In-The-Wild" virus, a claim that no other antivirus software can make.
Antivirus 2009 is rouge software. Spyware Doctor is not. I got antivirus 2009 because i didn't know what it was. But Spyware Doctor isn't rogue software. But if you have Antivirus 2009 you're computer can be at risk.
One can purchase previously used antivirus software by renewing their subscription. Most antivirus companies will charge monthly for thier software, so there is a fee to keep the software running each month.