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.

The desktop gadget for Windows Vista and Windows 7 users that lets them initiate scans and updates with one click, without having to open the full interface. It also contains links to AVG's Twitter and Facebook pages, which the company uses to bolster its support for the free version.

The PC Analyzer scans your system for Registry and disk errors. It includes a disk defragmenter and a broken-shortcut cleaner, as well. Although the feature is restricted in full to paid users, if you have the free version, the PC Analyzer comes with a one-time offer to clean all errors it finds. It provides a link to download the separate PC Analyzer tool, once the scan is completed. This is an interesting twist on the idea of letting users detect but not repair errors, and it provides more functionality while not affecting the basic security of your computer. However, it's likely that some users will shy away from the extra download.

Other features are restricted to users of AVG's paid upgrades. The paid upgrade version of AVG Anti-Virus 2012 distinguishes itself by offering chat link shield, a download scan for files sent via instant message that looks at all ports, not just port 80, and telephone support 24 hours a day, seven days a week. The PC Analyzer option mentioned earlier is also included, and comes without restrictions. New in 2012 to premium users is 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 Internet Security 2012 includes all that AVG Anti-Virus 2012 offers, and adds in a firewall and antispam protections.

Performance
AVG claims some major performance enhancements in the 2012 versions. Specifically, the company says that it has reduced by 40 percent the size on your hard drive of the virus signature database. That database is a major component of how the program recognizes threats. AVG also stated that the number of running processes that run suite has been reduced from 16 to 11, that it uses 20 percent less memory overall than previous versions, and that it ought to impact your computer's boot time less.