User manual

Configuration
Avira Free Antivirus - User Manual (Status: 16 Dec. 2013) 120
Scan boot sectors of selected drives
If this option is enabled, the System Scanner scans the boot sectors of the drives
selected for the system scan. This option is enabled as the default setting.
Scan master boot sectors
If this option is enabled, the System 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.
Note
This option is only available with Windows Vista and higher.
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
System Scanner scan. For performance reasons, an optimized scan is only logged on
standard level.
Note
This option is only available on multi-processor systems.