Social forum

 
 
Picture of Lily perker
Microsoft Outlook Experts - How to delete some duplicate folders
by Lily perker - Thursday, 2 October 2025, 11:40 PM
 

I had my work laptop crash on me in the middle of a work emergency, and IT gave me the configuration of a new laptop (they were great), but could not "clone/re-imaging/whatever it's called" my old hard drive, so the only option was an Outlook .PST file imported. Something went wrong with the import, and now I have nearly every folder duplicated in my Outlook. I didn't want to bug IT again since they put in a rush order to give me a laptop in a couple of hours.  I decided to see if there was an easy solution to my duplication dilemma by going online. To this point, I have come up empty (except for some duplicate software, I do not know if it works), but nothing else. The "Clean Up Folder" option under the HOME choice has not helped (or I am not doing it correctly), and I am currently looking at a long process of right-clicking and choosing the "delete folder" option, and I estimate I am looking at over a thousand.

Do I have any choices, then? Could I delete everything in my inbox and reimport my .pst? I realize that the export function allows you the option of replacing duplicates or not exporting duplicates. Does the import function have that choice as well? Would that re-create my inbox with one set of folders? If not, do any of the third-party software applications actually work?

Picture of Lauren perker
Re: Microsoft Outlook Experts - How to delete some duplicate folders
by Lauren perker - Saturday, 4 October 2025, 12:04 AM
 

When Outlook folders get duplicated after importing a PST file, it usually happens because the file was imported instead of opened, causing Outlook to recreate the same folder structure. Re-importing the PST won't fix the issue--it will only create more duplicates. Unfortunately, Outlook does not have a built-in option to delete duplicate folders in bulk. A reliable solution is to use the TrustVare Outlook Duplicate Removal Tool. This software is specially designed to remove duplicate emails, contacts, calendars, and folders from Outlook PST and OST files without affecting your original data. It works with all Outlook versions and supports both ANSI and UNICODE PST files, and also supports all Windows OS versions like 11, 10, 8.1, 8, and 7. The tool allows you to preview duplicates before deleting them, ensuring full safety. Before using the tool, make sure to back up your PST file, then let the tool scan and remove all duplicates Outlook PST automatically. It's much faster and safer than manual cleanup, giving you a clean and organized Outlook mailbox.