Posted 02 February 2009 - 12:08 PM
Choosing an anti-virus is a matter of personal preference, features offered, the amount of resources utilized, how it may affect system performance and what will work best for your system. A particular anti-virus that works well for one person may not work as well for another. You may need to experiment and find the one most suitable for your use. Another factor to consider is whether you want to use a paid for product or free alternative.
Most of the same considerations apply when choosing a firewall.
No single product is 100% foolproof and can detect and remove all threats at any given time. The security community is in a constant state of change as new infections appear. Each vendor has its own definition of what constitutes malware and scanning your computer using different criteria will yield different results. The fact that each program has its own definition files means that some malware may be picked up by one that could be missed by another. Thus, a multi-layered defense using several anti-spyware products (including an effective firewall) to supplement your anti-virus combined with common sense and safe surfing habits provides the most complete protection.
.Windows Insider MVP 2017-2018Microsoft MVP Reconnect 2016Microsoft MVP Consumer Security 2007-2015 Member of UNITE, Unified Network of Instructors and Trusted EliminatorsIf I have been helpful & you'd like to consider a donation, click