how to stop NAV automatic scanning of my disks

Hi

 

NAV2009 16.5.0.134, XP Pro SP3

 

How to stop NAV background scanning of my disks?

Last version 2008 offered a scheduling option "never" but new version doesn't seem to offer this choice.

 

The problem is deleted files without my knowledge and annoying alerts from folders, where I know that are problems embedded into zips, which right now I don't have time to work with.

 

Also I don't want to be deleted several tools, what admins need for system maintenance just because NAV names these hack tools.

 

Is there a way how to stop NAV scanning of my disks?