A post for computer users to use antivirus software to protect their system and best free antivirus 2013 to download.
What is an antivirus program?
Computer virus is an executable software program that is deliberately planned to obstruct the computer operation which would harm the files and other programs by corrupting the data. It is introduced to the computer through any software program and through the internet while downloading the files through File transfer protocol (FTP) or through email attachments.
Antivirus is also a software program which is specially designed to detect, prevent and to remove the mischievous programs in the computer. Installing and updating the antivirus software would help to protect the system by preventing the current viruses. Most type of antivirus programs are intended to update themselves automatically with the help of internet.
Why it is important to protect the computer from viruses?
Viruses are very dangerous as it has the power to change or destroy the data on computers like viruses in human body. Nowadays, the main aim of the cyber-criminals is to exploit the popular internet businesses by causing widespread damage and so the cyberspace has increased with malwares and infections. Browsing websites with Trojans and adware, email attachments or spam mails with worms, downloading the files from untrusted websites and copying the infected files from external devices would bring viruses to the computer. So there is always a need of antivirus software for a computer to protect it from the attacks of internal and external security threats.
How to find that the computer is infected by viruses?
Here are some alert symptoms that the computer is infected by viruses.
1. Computer runs very slowly than usual and reduction in performance.
2. System gets auto shutdown and restarts unexpectedly.
3. Problem in opening the Windows task manager and system booting.
4.Disappearance of files & documents and difficulty in accessing the CD & DVD drives.
5. Constant appearance of Pop-ups and folders are not opening appropriately.
6. System gets bogged down when doing the basic tasks.
7. Trouble in running the applications from the start menu.
8. Automatically redirect the page to certain websites while connecting the internet.
9. Warning message saying that the virtual memory is low.
10. Cursor is moving incorrectly or moving on its own.
How do the antivirus program protecting the computer?
Antivirus program is a powerful tool which could aids in protecting the computer from all kinds of malware programs. How it works?
# It normally looks the system files and compares the code to that of viruses with the help of definition list present in it.
# Most of the anti-virus software has the ability to update itself to recognize the new threats.
# If an inappropriate program tries to change the system data, it becomes flagged and it will alert the users.
# Any program which tries to alter the registry settings, operating system updates, antivirus protocols and firewall settings, these activities are recognized by the antivirus software and messages offered to the user to access or deny that program.
# There is a scanning mode in the antivirus program which usually checks the memory of the computer storage. If virus is found, it might be destroyed or confined for later examination.
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Best antivirus software 2013
Here are the details of best antivirus softwares 2013 and free antivirus download.
1. Bitdefender:
Bitdefender antivirus software is excellent to use and easy to set up. It uses little system resources so the performance of the system never gets slow with it. Having personal data filter, rescue mode and USB immunizer are the advantages which ensure the system protection. Here the infected files are collected and placed in the quarantine, the users are given the choice to remove them or direct them to the lab for further analysis. Remote management, secure financial transactions, worthy phishing protection are its good features.
Cons: Takes much time to clean-up the infected system.
2. Avira:
Avira antivirus software is available in four languages with good online support. It has improved security features and supports almost all the operating system. Quick removals of virus, generic repair system, proactive with advanced web protection are its genuine features and got good score in malware blocking test.
Cons: Interface seems little complex, poor detection of new phishing websites and pop-ups.
3. Emsisoft emergency kit:
This emergency kit contains powerful utilities which protect the PC by debugging and repairing the damaged or corrupted systems. No installation is required and the users can have full control over the system. It is highly rated by Virus bulletin as the system scanner uses a dual scan engine.
Cons: It does not take care of Rootkits
4. AVG:
Its smart interface design allows the users to perform the common actions with few clicks. Anti spyware tools like email scanner, link scanner, automatic updates and scanning options are excellent here and also have PC tune-up analysis. It checks almost all the files before downloading them and includes protection for Android devices. PC runs smoothly as it helps to stop unsecured links and files.
Cons: little difficulty in installation and sometimes manual clean-up is required.
5. Avast:
Avast free antivirus program is simple to install and its uncomplicated interface makes it to use comfortably. Quick scan to identify the potential threats and a software updater to alert about the missed program updates are some of its good features. It supports all types of operating system and it has the capability to detect the previous unknown virus and other malware. Its additional features include built in remote assistance and automatic sand boxing to keep the suspicious program from doing harm.
Cons: Icon interface takes some learning and high resource consumption.
6. Panda cloud:
It is extremely light as it is simple and quick to install. It is based on cloud computing with behavioral analysis. The users need not to worry about the updates and there would not be any troublesome messages. Additional malware tools are available to clean-up the system and it is very good in removing the new threats.
Cons: Absence of advanced features like automatic scan and phishing threats.
7. Microsoft security essentials:
This excellent antivirus program protects the PC from all sorts of viruses and it is easy to use. It scored good rank in independent labs as it isolates users from confusing details. Installation is easy with good interface and it uses definition files and real time defenses to prevent the malwares. Apart from the quick and full scan, there is a custom scan option available which let the users to select the specific folders to scan.
Cons: It has less features and scanning of files take lot of time.
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