A virus is a program that lodges itself on your pc without your knowledge with the sole intention of corrupting your system and the only way to get rid of them is by installing an anti-virus that is able to disinfect your computer of these viruses. As these viruses keep developing from time to time it would be advisable that one also has an updated form of antivirus that has the necessary program that will be able to fight the viruses.

• The first one would be the shield deluxe 2009.this anti-virus is powered by bit defender. This anti-virus will protect your personal data from theft making it worth to use. Its advanced feature includes; free technical support, intelligent scanning and real time threat detection. Retails for 20 dollars.
• The second one would be trend micro anti-virus internet security 2010.this antivirus retails for about 40 dollars. IT provides comprehensive and easy to use protection from viruses’, intruders and other internet based threats. Its advanced features include; prevents virus infected emails, home protection to up to 3pcs, spy ware and ad ware protection and enhanced software history cleaner.
• The third would be the Norton anti-virus. It provides fast reliable protection against malicious software. It also retails for about 40 dollars. Its advanced features include; fast updates every 5 to 15 minutes, best proactive protection and defends against web based attacks.
  
• The third is the panda antivirus pro 2010.retailing for about 50 dollars it features a new ultra fast engine that is 30% faster than its predecessors. Its advanced features include; anti malware engine, on demand scanning and smart auto configuration.
• The fifth antivirus would be the zone alarm anti virus 2009.it retails for about 20 dollars. Its se up is quite easy as all you have to do is follow a wizard. Its advanced features include; on demand scanner interface, simple to install and run, and advanced virus removal technology.
  
• The sixth would be the ESET NOD 32.retails for about 40 dollars. it can be able to detects and disables viruses, Trojans, worms, ad ware, spy ware, phishing, root kit. Its advanced features include; system restore and using a combination of filtration methods.
• The last would be the Kaspersky anti virus. Retails for about 40 dollars. It has the ability to protect your computer against known and unknown threats, and against unwanted data. Besides, it also monitors system activities by user applications, preventing any dangerous actions by applications. Its main features include; updates automatically, scans files and internet traffic and free trial.

These anti viruses are sure to give you the protection that your PC needs against viruses. You can purchase either depending on the depth of your pocket.