My computer keeps telling me

Norton anti-virus is a product of Symantec Corporation. Norton anti-virus helps you to remove viruses and malicious codes from your computer, it also protect you from online threats. Symantec programmed and launched various versions of Norton anti-virus to protect your pc and Internet Security to secure your online activities from hackers.

As per history of Norton products, it's about 25 years before Norton antivirus came on the market. The name of the first Norton anti-virus was Norton Commander, released in the year 1986, served as a standard interface for DOS. This version of Norton was invented to protect DOS from malicious programs. Norton Commander was a prototypical orthodox file manager, written by John Socha and released by Peter Norton.

Norton Commander is considered easy to use based on its constant view of two file manipulation objects at once. After starting the program the user sees two panels with file lists. Each panel can be easily configured to show information about the other panel, a directory tree, or a number of other options.

When Symantec acquired Peter Norton Computing from Peter Norton, Norton starts to develop various utilities or applications for DOS, as well as for Windows. Product activation was introduced in Norton anti-virus 2004. Spyware and adware detection and removal tool was introduced to the 2005 version. The redesign main graphical user interface and homepage hijacking protection was released with 2006 version of Norton anti-virus. With the version of 2007 windows 2000 compatibility was dropped and Vista compatibility was introduced, with anti-rootkit technology. Version 2009 and 2010 released with Sonar protection, File Insight, and rogue security software tools. The latest version of Norton anti-virus is 2011, which protect your computer being infected from facebook wall and feed.

<p>First you have to install any one anti-virus software and make it ready with online update, and then scan your computer with that anti-virus software. Reliable anti-virus software features a scanner equipped with the technology required to detect and eradicate viruses, worms and other members of the malware family.<br /> <p> <br> <p>Viruses have many strategies to infect your computer, like avoiding detection from protection software. To prevent these virus strategies and protect your computer anti-virus software also has some methods, like Norton anti-virus use Signature base and Heuristics-base detection. Signature based detection includes searching for knowing structure within executable code, however your computer can be infected with most new virus which signature is not known. In that case heuristics method can be used. It can identify new viruses by variation of such code, in files.<br> <p> <br> <p>Norton anti-virus has many other features, which it upgrades from version to version, like Sonar protection. SONAR examines the behaviour of applications to decide whether they are malicious. Various things are checked such as if the program create a desktop shortcut or create add/remove programs entry before determining the program is malicious. Another feature is Norton insight. It is a program that comes with the Norton 360. It improves the speed and quality of computer scan. It identifies well known files of client machine and excludes them from constant monitoring and scanning. It only scans unknown and unsecured files. Skipping the already known files helps the scan more impact. Symantec antivirus can interaction with rogue software, actually these type of software are nothing but a misleading program, it always rebranded and cloned of its previous version.<br> <p> <br> <p>Many other anti-viruses have features like anti-virus, anti-malware, anti-spyware which is used to detect and remove viruses from your computer, whenever you scan your pc with this anti-virus software.

<p>There are many different types companies, who create different anti-virus software. One of the most popular companies is Symantec Corporation. Symantec has its own products like Symantec Anti-virus, Symantec internet security, Symantec also have another anti-virus products called Norton. Symantec launched various versions of its products and till now, the latest version of Symantec Corporation is Norton Internet Security 2011. It's about 25 years before Norton antivirus came on the market. The name of the first Norton anti-virus was Norton Commander, released in the year 1986, served as a standard interface for DOS. This version of Norton was invented to protect DOS from malicious programs. Norton anti-virus can be listed as an oldest anti-virus program. The initial version of Norton commander was called vdos with a slandered interface for dos, for initial virus protection.<br /> <p> <br> <p>Compared to other anti-virus software, Norton provides in-built firewall software, e-mail scanner, anti-rootkit, and anti-spyware, anti-virus. Some newer options released like Sonar protection, file insight, threat insight, insight network etc. It is fast and compatible with vista like operating systems.<br> <p> <br> <p>Other popular companies are McAfee, which provides anti-virus, anti-spyware, firewall software like features and PC utilities, like QuickClean tool, defragmenter and file shredder, which lets you permanently delete sensitive files in a manner that they can't be recovered. Protection software is Kaspersky; it also provides anti-spyware, anti-virus and firewall software. One very unique feature of Kaspersky is the virtual keyboard; this small application lets you input sensitive information like credit card number, password in online without worrying about keyloggers or hackers.<br> <p> <br> <p>Many other anti-virus software have been uses, like ESENT Webrot, NOD32, QuickHeal, AVG, AVAST anti-virus etc. you can also download free versions of anti-virus from online. Whichever anti-virus you're using make sure one thing that you have to update it regularly to protect your computer.