AVG 2012 includes a couple of solid changes to make you safer. The first is a patent-pending technique for identifying one of the most obnoxious threats to ever reach your computer: the fake antivirus. If you're unfamiliar, these programs purport to be an antivirus, or a Web-based antivirus scan. Once they install on your computer, the only way to get rid of the infection is to "buy" their license. They're also related to the ransomware infections, which don't even bother with the effort to pretend to be an antivirus. AVG 2012 will block both of them.
The LinkScanner tool has been improved to watch out for more dynamic code, which is essential in the security game because threats are mutating at such a rapid rate. Meanwhile, premium users get the new AVG Accelerator option, which optimizes your Internet connection to speed up downloads and rendering. It currently works on two sites: YouTube, and you can see its impact when pausing and unpausing videos; and Download.com binary downloads. The accelerator protocol was developed internally at AVG.
AVG now includes a monitoring tool that automatically warns you when Firefox, Chrome, or Internet Explorer consumes too much memory. Called AVG Advisor and in all of the AVG suites, it opens a small pop-up and asks you if you'd like to restart your browser. There's no way to "force" it to activate, although if you open up a couple dozen tabs, wait a few minutes, and then open another dozen or so, it ought to kick in.
Changes made last year are still relevant. The software offers what it calls "smart scanning," which leverages AVG's behavioral detection network to scan known safe files once, and only rescan them if it detects changes. As with its competitors, AVG's network is made up of its user base anonymously contributing data up to the cloud. You can choose to opt out of contributing your data when you install, or from the options menu. AVG says opting out won't negatively affect your security.
The smart scanning tech also gives you a built-in system resource manager that prioritizes scans. If a scan is scheduled to begin while the computer is in use, it will automatically restrict the scan so that it runs slower but doesn't interfere with the computer's other tasks. When it detects the computer idling, it will then allocate more power to the scan. The feature comes with a slider so you can customize how sensitive it is.