New
#21
As good as AVAST is, something could sneak by, such as a new nasty that AVAST hasn't written a definition for yet. Keep in mind that AVs, etc. are more retroactive than proactive; they mostly respond to known nasties. If set correctly, UAC will alert you every time a process is being started so it will be difficult to impossible for a nasty to start a process without your knowledge as long as you allow UAC to do its thing and you take the extra second to read the popup before clicking on it.