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How to Move Files from Multiple Folders and Rename Duplicates in Windows 11

Maira Mehtab Sep 24, 2026 870 views

Question details

Consolidate over 100,000 photos and videos from multiple subfolders into a single directory while automatically keeping and renaming files that share the same name.

Product: Windows File Explorer
Device & OS: Windows 11
Scenario: Moving massive amounts of media files from hundreds of source subfolders into one target folder.
Observed behavior: Windows File Explorer encounters filename conflicts and only offers "Replace" or "Skip" prompts, lacking a built-in bulk option to keep both files and automatically append a unique suffix.

Before you start

Verify the total size of the folders you intend to move by right-clicking them and selecting Properties, ensuring the destination drive has adequate free space for the massive file transfer.

Solution 1Recommended

Use a Dedicated File Management Tool (Recommended)

Third-party file managers and bulk copy utilities feature built-in conflict resolution rules that can automatically append unique suffixes to duplicate filenames during large transfers.

Since Windows 11 File Explorer struggles with preserving over 100,000 duplicates automatically, utilizing a robust file management utility like TeraCopy, FreeCommander, or Total Commander is the safest and most efficient approach.

Install a file copying utility

Download and install a trusted third-party copying utility such as TeraCopy, which replaces the default Windows copy handler and provides advanced collision rules.

Select the source files

Navigate to the parent directory containing your hundreds of subfolders, search for *.* to display all files, and select all the photos and videos you want to move.

Initiate the move operation

Drag and drop the files into your destination folder using the utility. When the first filename conflict appears, click the tool's options prompt.

Apply auto-rename rule

Select the 'Keep Both' or 'Auto-Rename All' option in the utility's prompt. The software will automatically append a sequential number to any duplicate names as it moves the files.

Transfer Log Available: Dedicated tools typically provide a post-transfer log, allowing you to easily verify that all 100,000+ files were moved successfully without any skips.

Solution 2

Use a Custom PowerShell Script

A PowerShell script can automate the process of iterating through subfolders, moving files, and checking for name collisions to append a unique timestamp or number.

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Frequently Asked Questions

Why doesn't Windows 11 File Explorer have a "Keep Both" option for bulk transfers?

While older versions of Windows sometimes offered a clearer 'Keep Both' dialog that appended numbers, Windows 11's modernized copy dialog often defaults to 'Replace' or 'Skip' to streamline UI for average users. It struggles to intelligently parse and auto-rename thousands of collisions at once without manual confirmation.

Can I use the Windows search bar trick to move files?

Yes, you can search for '*.*' in the parent folder to display all contents from subfolders in a flat list. However, if you select all and drag them to a new folder, you will still encounter the filename collision issue if multiple files share the exact same name (like 'IMG_001.jpg').

How do duplicate filenames happen when importing photos?

Digital cameras and smartphones often reset their sequential naming counters (e.g., DSC_0001.jpg) when a folder gets full, a memory card is formatted, or device settings are reset. When combining photos from multiple devices or years into a single folder, these overlapping names inevitably conflict.

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