How to Merge Two Large NTFS Folders in Windows 10 Pro While Keeping the Newest Files and Attributes Intact?

Abstract: Learn how to merge two large NTFS folders in Windows 10 Pro while preserving the newest files and their attributes. A step-by-step guide for users with basic technical skills. Make sure to read more for a comprehensive tech support solution.

Created: 2025-02-17 by UserComp.com Editors

Merge Two Large NTFS Folders in Windows 10 Pro, Keeping Newest Files Attributes Intact

As a retired network engineer, you might find yourself in a situation where your files and folders have been affected by a recent installation of Microsoft remote 365. This article will guide you through the process of merging two large NTFS folders in Windows 10 Pro, while ensuring that the attributes of the newest files are intact.

Subtitles

Understanding NTFS
Preparing for the Merge
Merging the Folders
Preserving File Attributes
Additional Tips

Understanding NTFS

NTFS (New Technology File System) is a popular file system used by Windows operating systems, including Windows 10 Pro. NTFS offers several advantages over other file systems, such as support for large file sizes, access control, and file compression. Understanding the basics of NTFS will help you navigate the merging process more efficiently.

Preparing for the Merge

Before merging the two folders, ensure that both are located on the same NTFS partition or drive. This is crucial to maintain the file attributes during the merge. Next, back up both folders to prevent data loss in case of unexpected issues. You may use external storage devices or cloud backup services for this purpose.

Merging the Folders

To merge the two folders, use the following steps:

Open an elevated Command Prompt window (run as administrator).
Change the current directory to the location of the source folder.
Enter the following command:

robocopy /maxage:1 /is /mir

This command includes the following options:

/maxage:1: copies files modified within the last day (you can change the value according to your preference)
/is: includes the same files from both folders
/mir: mirrors the source to the destination (deletes files in the destination folder that do not exist in the source)

Preserving File Attributes

The robocopy command preserves file attributes such as timestamps and permissions by default. However, to ensure that the attributes of the newest files are intact, double-check the file properties after the merge process.

Additional Tips

Consider using a third-party tool such as FreeFileSync or Syncovery if you find the command prompt process complicated.
Exercise caution when merging folders with identical filenames to avoid overwriting or losing data.

References

Windows Internals, Part 2 (6th Edition), Mark E. Russinovich, David A. Solomon, and Alex Ionescu
Robocopy Documentation
How to Resync Two Folders and Their Subfolders Using Windows Command Prompt

Tags: Windows 10 NTFS Folder Merge Data Recovery

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