How to Remove Duplicate Contacts - Version 1.0 If you are worried about Outlook duplicates contacts, email and other items, you don't worry now you can easily remove duplicate emails from Outlook file. SysTools Outlook duplicates remover software offers you powerful and comfortable solution. Outlook duplicate contacts remover software successfully remove countless duplicates contacts, calendars, notes, tasks, journals, emails etc. from PST file. There are two options for removing duplicates items from .PST file ("ACROSS FOLDERS" and "WITHIN FOLDERS"). Both option are better and time consuming. If you have same emails and contacts in the two .PST files, then you should use Across Folders for removing duplicates contacts from both file. If there are duplicate emails and contacts in the same .PST file then you should choose "Within Folders" options for removing duplicacy from PST file. Outlook duplicates remover software supports all Windows version (Win 7, Vista, 2003, 2002, 2000, XP & 98) and MS Outlook version (2010, 2007, 2003, 2002, 2000, XP, NT, 98 & 97). SysTools Software also provides the facility of