User manual

Table Of Contents
Avira AntiVir Professional
66
Note
If this option is enabled and you have deleted all entries from the list with file
extensions, this is indicated with the text "No file extensions" under the button File
extensions.
File extensions
With the aid of this button, a dialog window is opened in which all file extensions are
displayed that are scanned in Use file extension list mode. Default entries are set for
the extensions, but entries can be added or deleted.
Note
Please note that the default list may vary from version to version.
Additional settings
Scan boot sectors of selected drives
If this option is enabled, the Scanner only scans the boot sectors of the drives selected
for the on-demand scan. This option is enabled as the default setting.
Scan master boot sectors
If this option is enabled, the Scanner scans the master boot sectors of the hard disk(s)
used in the system.
Ignore offline files
If this option is enabled, the direct scan ignores so-called offline files completely during a
scan. This means that these files are not scanned for viruses and unwanted programs.
Offline files are files that were physically moved by a so-called Hierarchical Storage
Management System (HSMS) from the hard disk onto a tape, for example. This option is
enabled as the default setting.
Integrity checking of system files
When this option is enabled, the most important Windows system files are subjected to
a particularly secure check for changes by malware during every on-demand scan. If an
amended file is detected, this is reported as suspect. This function uses a lot of computer
capacity. That is why the option is disabled as the default setting.
Important
This option is only available with Windows Vista and higher. The option is not available
if you are administering Avira AntiVir Professional under SMC.
Note
This option should not be used if you are using third-party tools that modify system files
and adapt the boot or start screen to your own requirements. Examples of such tools are
skinpacks, TuneUp utilities or Vista Customization.
Optimized scan
When the option is enabled, the processor capacity is optimally utilized during a Scanner
scan. For performance reasons, an optimized scan is only logged on standard level.
Note
This option is only available on multi-processor systems. If AntiVir Professional is
administered with SMC, the option is always displayed and can be enabled: If the
administered system does not have more than one processor, the Scanner option is not
used.
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