how to clean up duplicate contacts in windows live mail

Last reviewed on February 12, 2021 4 Comments

Applies to: Outlook 2010, Outlook 2007

This is a collection of tools used to remove duplicates from your Microsoft Outlook Contacts folder. Some of these tools will also remove duplicates from other Outlook folders.

When the duplicates are the result of importing and all are duplicated, you can sort by the modified date field (you'll need to add the Modified field to the view), then delete all of the items with the same modified date and time. When the duplicates have assorted modified times, you'll need to delete the duplicates yourself or use one of the many duplicate remover tools to automate the process.

If not using a list view, switch to a list view.
Right click on the row of field names
Choose Field Chooser
Find the Modified field in one of the All <type> fields list.
Drag the field to the row of field names and drop
Sort by the Modified field.

Sort by the modified date field

Tools

1-Click Duplicate Delete	1-click solution to remove duplicate mails, contacts or calendar items. Merges contacts automatically, has an undo function and a configurable advanced mode. Version 3.03 Now supports Outlook 2010 (both 32 and 64 bit).
4Team Outlook Duplicate Remover	Duplicate Remover will find, merge and remove duplicates in 3 steps using simple search wizard. Search duplicate items and merge Outlook duplicates automatically. Review & merge duplicate Outlook contacts. Remove Outlook Inbox duplicates, duplicate Contacts and Calendar events, Junk contacts. Quickly clean up all your contacts. Application can now be started as a standalone, without starting Microsoft Outlook. Scan Outlook inbox automatically and clean duplicates in one click. Now delete duplicates for multiple folders.
Anti-Dupe for Microsoft Outlook	Remove unwanted Outlook duplicate records with Anti-Dupe for Microsoft Outlook add-in utility. Anti-Dupe for Outlook scans and deletes duplicate Outlook duplicate appointments, contacts, emails and tasks based on pre-determined criterion set by Anti-Dupe. Trial version available.
Deduper - Outlook Duplicate Remover	Deduper does exactly as the name suggests, it searches and removes all duplicates - including appointments, contacts, notes, tasks or emails.
Delete Duplicates for Outlook	Delete Duplicates for Outlook deletes duplicate e-mails. Detect and remove duplicate messages, contacts, calendar items, tasks, journal entries and notes. Compare messages by content (Standard), by part of the content (Special) or by unique message-id's (Light). Compare attachments and/or embedded files, by name and/or by content. Compare duplicates across several mailboxes or in within the boundaries of individual mailboxes. Use Regular Expressions. Works with all Outlook versions, inc. Outlook 2010/2013 32 or 64-bit.
Duplicate Contacts Eliminator	Either delete duplicate contacts or move them to a separate folder.
Kernel for Outlook Duplicates Remover	Kernel for Outlook Duplicates Remover tool is specifically programmed to remove duplicate items of MS Outlook permanently. The tool easily locates all duplicate Outlook items and provides option to either manage them or remove them permanently. The tool supports removal of duplicate items for all MS Outlook versions. Its free trial version can remove 10 items from each folder and expires after 30 days of download.
Mergix Duplicate Contact Remover	The free duplicate contacts removal service for Outlook Exchange, Office 365 Mail, iCloud and other contacts sources. A time-saving solution to clean up large contact lists and Address Books automatically. The simple cloud-based app will scan and compare contact data across the selected email services (Microsoft Outlook with Exchange accounts, Office 365 Mail, iCloud, Gmail, Outlook.com, Hotmail) and find all duplicated contacts. The web app is compatible with all Windows PCs and Macs, iOS, Android smartphones and tablets.
NoMoreDupes for Outlook	NoMoreDupes detects and removes all duplicated Outlook items both in an Outlook pst file, a public folder or in an Exchange account. It shows the found duplicates in a preview for the user to decide which duplicates to remove. You can move the duplicated Outlook items to your "Deleted Items" or to any other folder you specify. NoMoreDupes uses a special algorithm to detect the Outlook duplicates. This Outlook-Add-In works with all versions of Outlook, including Outlook 2010/2013 64bit.
OL LookForDuplicates	Find & remove duplicates with this open-source VBA-Script. Searches for duplicate entries of any type (calendar, contact, e-mail, notes, task, etc.) across folders in Outlook. Suspected duplicates are listed and can be moved to the Deleted Items folder.
Outlook Duplicate Items Remover	Free tool for removing duplicate items from Outlook folders. ODIR recognizes duplicates in Contacts; Calendar; Tasks; Notes and Email folders. Using ODIR is very easy: select a folder and click the button Remove Duplicate Items. ODIR scans the selected folder for duplicates and MOVES all duplicates found to a subfolder ODIR_duplicate_items. Version 1.2
Outlook Duplicates Remover	Removes duplicate items from Calendar, Tasks, Contacts, Notes, and mail folders. Free.
Stellar Duplicate Remover	Clean up your Outlook mailbox from unwanted and duplicate emails with Outlook duplicate remover tool. This software works as an Add-Ins in Outlook and removes duplicates as per different time span and scan criteria. Customized operations like Mark as Expired or Flag, Delete Permanently, Copy to folder and more are also a notable feature of this software.