This feature can only be modified in Professional and Enterprise Editions.
With the Enable comprehensive searching for passwords in the following file types setting You can specify when Identity Finder will comprehensively search for passwords in files. When AnyFind Passwords is enabled, Identity Finder will search all locations you specify for passwords, but comprehensive searching is a more in-depth searching algorithm that sometimes yields more false positives especially in audio and visual files like mp3 and jpg files. You can choose to only allow comprehensive searching to occur on Filterable files (usually includes documents, spreadsheets, or all files. Comprehensive searching will always occur in locations other than files (such as E-Mails and System Areas).
None (Do Not Enable Comprehensive Searching Anywhere): Identity Finder will not perform in-depth comprehensive searching of passwords in any file types. It will only find passwords using standard techniques.
Enable Comprehensive Searching Only in Filterable File Types (this is the default setting): Identity Finder will only perform in-depth comprehensive searching of passwords in Filterable files types.
Enable Comprehensive Searching in All File Types: Identity Finder will perform in-depth comprehensive searching of passwords in all files types.
Select the radio button of your preference.

To view or change these settings, click the Settings button on the Tools and Options ribbon.