FolderTimeUpdate is a free, lightweight utility by NirSoft designed to batch-modify the “Modified Date” of Windows folders based on the timestamps of the files contained within them. By default, Windows does not automatically update a parent folder’s modification date when you edit files deep inside subfolders. This tool fixes that behavior by scanning folder contents and resetting the folder’s timestamp to match its newest (or oldest) file. How to Use FolderTimeUpdate
You can update your folder timestamps by following these steps:
Set the Base Folder: Enter or browse to the root path of the directory you want to fix in the Base Folder field.
Define Scan Depth: Choose how deep the tool should look. You can choose to scan all subfolders recursively or limit the scan to a specific level of subdirectories.
Choose the Time Source: Under the Find the time inside the folder configuration, choose whether you want to match the Newest File (most common) or the Oldest File.
Select Time Types: Specify which file timestamps to analyze as the source. Options include Modified Time, Created Time, or Accessed Time.
Run a Simulation: Check the Simulation mode box first. This lets you preview what the “New Modified Time” will look like without executing any actual changes to your drive.
Apply Changes: Uncheck the simulation mode and click Start to update the timestamps. Key Features
No Installation Required: It is a portable standalone .exe file that leaves no clutter in your Windows registry.
Subfolder Calculation: You can choose whether a folder’s date should be calculated strictly from the files directly inside it, or if it should also factor in the contents of its subfolders.
Empty Folder Handling: You can set a fallback rule (such as matching the parent folder’s date or using the current time) if a subfolder contains no files.
Exportable Reports: The main window displays a complete log showing the folder path, original modification time, and new modification time. You can export this view into CSV, TXT, HTML, or XML formats.
Command-Line Interface: It supports background automation using command-line parameters, making it ideal for scheduled backups or cleanup scripts.
If you are trying to automate this or run into specific errors while updating your directories, let me know. I can give you the exact command-line parameters or show you a PowerShell alternative to do it without external software!
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