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Reference: Configuration options
Note
If you have selected Delete or Overwrite and delete as the primary or
secondary action, you should note the following: In the case of heuristic hits, the
affected files are not deleted, but are instead moved to quarantine.
Archives
When scanning archives, the System Scanner uses a recursive scan: Archives in archives
are also unpacked and scanned for viruses and unwanted programs. The files are
scanned, decompressed and scanned again. (Options available in expert mode only.)
Scan archives
If this option is enabled, the selected archives in the archive list are scanned. This
option is enabled as the default setting.
All archive types
If this option is enabled, all archive types in the archive list are selected and scanned.
Smart Extensions
If this option is enabled, the System Scanner detects whether a file is a packed file
format (archive), even if the file extension differs from the usual extensions, and scans
the archive. However every file must be opened for this, which reduces the scanning
speed. Example: If a *.zip archive has the file extension *.xyz, the System Scanner
also unpacks this archive and scans it. This option is enabled as the default setting.
Note
Only those archive types marked in the archive list are supported.
Limit recursion depth
Unpacking and scanning recursive archives can require a great deal of computer time
and resources. If this option is enabled, you limit the depth of the scan in multi-packed
archives to a certain number of packing levels (maximum recursion depth). This saves
time and computer resources.
Note
In order to find a virus or an unwanted program in an archive, the System
Scanner must scan up to the recursion level in which the virus or the unwanted
program is located.
Maximum recursion depth
In order to enter the maximum recursion depth, the option Limit recursion depth must
be enabled.
Avira Antivirus Premium - User Manual (Status: 23 Sep. 2011)
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