No. Only those known to the antivirus producers.
The definitions for antivirus programs are basically snippets of viral code from all known viruses. When a file is accessed on your computer, the antivirus software does a quick scan and checks its database for any matches to to its definitions.
AntiVirus Software | Spyware Removers | AntiSpam Software | Firewall Software | All these are the main types of anti-viruses of a computer. You can choose different type according to the specific situation of the virus on your PC. http://www.sharewarerating.com/software/antivirus
If you don't want viruses, download a good antivirus software such as Norton 360. Not all antviruses will remove all viruses, so occasionaly, a virus will pop up on your computer.
To update antivirus software with the internet all you have to do is be connected to a network and then click your antivirus software and click update or just let it automatically do it for you. By doing this you are keeping your computer protected against the 100+ viruses created per day.
Antivirus or anti-virus software (usually written as the abbreviation AV) is software used to prevent, detect and remove malware (of all descriptions), such as: computer viruses, malicious BHOs, hijackers, ransomware, keyloggers, backdoors, rootkits, trojan horses, worms, malicious LSPs, dialers, fraudtools, adware and spyware. Computer security, including protection from social engineering techniques, is commonly offered in products and services of antivirus software companies. This page discusses the software used for the prevention and removal of malware threats, rather than computer security implemented by software methods. Antivirus software is a computer program that detects, prevents, and takes action to disarm or remove malicious software programs, such as viruses and worms. You can help protect your computer against viruses by using antivirus software.
All of us are cautious about our identity in real lives. The same importance should be given to our digital identity too. Compromising digital identity may lead to loss of data and money in our bank accounts. So be very careful and take all the necessary steps to be secure digitally. Consider buying antivirus suites from the best antivirus software labels which has both windows antivirus & mobile antivirus like K7 antivirus programs to protect your digital footprint and stay secure from invasive online tracking and keep up your internet security.
You probably have a fake antivirus on your computer because all programs can't be infected (the chances are low). I would recommend scanning with software to remove the fake antivirus.
These programs are called "Antivirus Software". You can find these all over the place, I wouldn't recommend downloading a free one you found on the internet as those are somewhat likely to contain a virus. I personally use Norton Antivirus to protect my computer, I haven't had a virus in quite some time. Here is a list of Antivirus Software that I know is safe that you can use for your PC. Norton Antivirus McAfee Avast Vipre Antivirus Kaspersky
the reason you update the programs is so that you can get the newest definitions so that you can always be safe from the newest viruses and spyware. a perfect antivirus program is XoftspySE it work with all anti viruses and is an easy to use product with a great user interface. i recommend it for everyone. you can find it at Antispywaremechanic.com
The CCleaner software's main purpose is to clean one's computer of all mal-ware and viruses. It acts as an antivirus for windows. It cleans Internet Explorer, Google Chrome and Firefox.
The pop-ups are trying to sell you fake anti-virus software. When you pay, they get your credit card number, and they download malware and viruses onto your computer. The Fix: Close all windows and run a full system scan using updated, legit Antivirus Software like ThreatFire Antivirus, AVG Free Antivirus, and Avast! Free Antivirus.
A keylogger is a virus that records all keystrokes on the computer keyboard and sends them to hackers. Most antivirus software programs will remove keylogger viruses.