Windows Powershell command to touch all my files in a directory

 Credit to chatGPT:

In Windows 11, you can use a simple PowerShell command to "touch" all your files, updating their timestamps so OneDrive considers them "fresh" without making actual content changes. Here's how you can do it:

Steps to Update File Timestamps

1. Open PowerShell as Administrator:

   • Press Win + X and select Windows Terminal (Admin) or PowerShell (Admin).

2. Navigate to the folder you want to "touch":

   powershell
   cd "C:\Path\To\Your\Folder"
   

3. Run the following command to update the LastWriteTime for all files recursively:

   powershell
   Get-ChildItem -Recurse | ForEach-Object { $_.LastWriteTime = Get-Date }
   

   This will set the LastWriteTime of all files to the current date and time.

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Explanation:

• Get-ChildItem: Retrieves all files and directories in the folder.
• -Recurse: Processes all subfolders and their contents.
• ForEach-Object: Iterates through each item.
• LastWriteTime: Updates the timestamp to Get-Date (current date and time).

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Important Notes:

1. Test First: Run this in a small test folder to ensure it behaves as expected.
2. OneDrive Sync: After modifying timestamps, OneDrive should sync the updated metadata and treat the files as fresh.
3. Preserve Original Timestamps: If you want to preserve original timestamps, back them up before running this script.

Let me know if you need further assistance!