March 4, 2011

Portable Antivirus.


Having antivirus software run from a USB drive is a good, good thing, particularly since the large size of antivirus definitions have made running a scan from a floppy a thing of the past.
Moreover, since not all antivirus products will run in Safe Mode and it's much easier to clean a system in Safe Mode, this poses a bit of a conundrum. Plus, today's malicious software often attacks the antivirus first, meaning that just when you need a scan the most, the antivirus installed on your PC just might be dead.


The obvious advantage of a USB-based antivirus is that you can easily update it simply by plugging it into any Internet-connected PC. A second huge plus is that the USB drive also functions as a storage device and  USB drive can support a number of other useful applications as well.
 Advantages:
  1.  Easy to carry and use.
  2.  Updating virus defenitions is very easy when compared with ordinary antiviruses.
  3.  Some infection disables the Antiviruses first disables the Antivirus installed on a computer, but in the case of Portable Antiviruses, they are stand alone programs.
  4.  Use less amount of RAM memory.
Some Examples: 
  • ClamWin
  •  Norman Malware Cleaner
  • Sophos Anti RootKit
  • Dr. Web CureIt
  • VIPRE PC Rescue
  • Kaspersky Virus Removal Tool
  • Trend Micro SysClean
  • Mx One
  • A-Squared Emergency USB Stick

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