User manual

A V G Internet Security 201 2 © 2012 C opyright A V G Technologies C Z, s.r.o. A ll rights res erved. 11 7
preferences or the contents of their electronic shopping carts)
Scan inside archives (off by default): this parameter specifies that the scanning should
check all files even if they are stored inside an archive, e.g. ZIP, RAR, ...
Use Heuristics (on by default): heuristic analysis (dynamic emulation of the scanned
object’s instructions in a virtual computer environment) will be one of the methods used for
virus detection during scanning;
Scan system environment (on by default): scanning will also check the system areas of
your computer;
Enable thorough scanning (off by default): in specific situations (suspicious of your
computer being infected) you may check this option to activate the most thorough scanning
algorithms that will scan even those areas of your computer that rarely get infected, just to
be absolutely sure. Remember though that this method is rather time-consuming.
Scan for rootkits (on by default): Anti-Rootkit scan searches your computer for possible
rootkits, i.e. programs and technologies that can cover malware activity in your computer. If
a rootkit is detected, this does not necessarily mean your computer is infected. In some
cases, specific drivers or sections of regular applications may be misleadingly detected as
rootkits.
You should also decide whether you want to scan
All file types with the option of defining exceptions from scanning by providing a list of
comma separated (after being saved, the commas change into semicolons) file extensions
that should not be scanned;
Selected file types - you can specify that you want to scan only files that can get infected (
files that cannot get infected will not be scanned, for instance some plain text files, or
some other non-executable files), including media files (video, audio files - if you leave this
box unchecked, it will reduce the scanning time even more, because these files are often
quite large and are not likely to be infected by a virus). Again, you can specify by
extensions which files should always be scanned.
Optionally, you can decide you want to Scan files without extension - this option is on by
default, and it is recommended that you keep it so unless you have a real reason to change
it. Files with no extensions are rather suspicious and should be scanned at all times.
Adjust how quickly scan completes
Within the Adjust how quickly scan completes section you can further specify the desired
scanning speed dependent on system resource usage. By default, this option value is set to the
user sensitive level of automatic resource usage. If you want the scan to run faster, it will take less
time but the system resources used will increase significantly during the scan, and will slow down
your other activities on the PC (this option can be used when your computer is switched on but
nobody is currently working on it). On the other hand, you can decrease the system resources used
by extending the scanning duration.