Antivirus software are computer programs that attempt to identify, neutralize or eliminate malicious software. The term "antivirus" is used because the earliest examples were designed exclusively to combat computer viruses; however most modern antivirus software is now designed to combat a wide range of threats, including worms, phishing attacks, rootkits, trojan horses and other malware. Antivirus software typically uses two different approaches to accomplish this:
* examining (scanning) files to look for known viruses matching definitions in a virus dictionary, and
* identifying suspicious behavior from any computer program which might indicate infection.

The second approach is called heuristic analysis. Such analysis may include data captures, port monitoring and other methods.
Most commercial antivirus software uses both of these approaches, with an emphasis on the virus dictionary approach.

BitDefender 10 Free Edition

Product Description
FREE Antivirus for All

  • BitDefender Free Edition is your chance to use one of the world's most effective antivirus engines for free!
  • BitDefender Free Edition uses the same ICSA Labs certified scanning engines found in other BitDefender products, allowing you to enjoy basic virus protection for no cost at all.
  • BitDefender Free Edition is an on-demand virus scanner, which is best used in a system recovery or forensics role. If you are on an "always-on" Internet connection, we strongly advise you to consider using a more complex antivirus solution.
Features and Benefits
  • Virus scanning and removal. On demand scanning - Powerful scan engines ensure detection and removal of all viruses in the wild every time you need it.
  • Scheduled scanning. The Scheduler lets you plan ahead, and schedule full system/drive scans in the off hours, when you won’t be using your computer.
  • Immediate scanning. With just a right click you can check your files and folders.
  • Skinable interface. You can express yourself, designing new interfaces, or you can use those drawn by others.
  • Quarantine. By isolating the infected files in quarantine, the risk of getting infected diminishes. You also have the possibility to send these files for further analysis to BitDefender Labs.
  • Reports. When launching a scan you may choose to create a report file where you can see statistics about the scan process.
System requirements:
* Pentium MMX 200 Mhz or higher processor
* Minimum 64MB of RAM Memory (128MB recommended)
* Minimum 40MB available hard disk space
Operating platform: Windows 98/NT-SP6/Me/2000/XP IE 4.0(+)

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