Script to swap two words in folder name

Since you ok'd powershell, here is a powershell script that should do the work for you.
This can also be done in batch fairly easily but I don't suggest it.

I would normally push harder for you to do this yourself.. but this should give you a good launching point for future file processing in powershell.

You can use this concept to process anything you want in any way you want.
Look at where I put the spit line..
that's your before name..

Look at the $newName= line.
that's your after name.

Right there is where you would change the logic of what to find and what to do with it.

param (
    [string]$Path = (Get-Location).Path
)

# Get all folders in the specified directory
$folders = Get-ChildItem -Path $Path -Directory

# Loop through each folder
foreach ($folder in $folders) {
    # Split the current folder name by comma
    $nameParts = $folder.Name.Split(',')
    
    # Check if the folder name has onlyh name, surname
    if ($nameParts.Length -eq 2) {
        # Trim and create new name
        $surname = $nameParts[1].Trim()
        $name = $nameParts[0].Trim()
        $newName = "$surname, $name"
        
        try {
            # Rename the folder
            Rename-Item -Path $folder.FullName -NewName $newName -ErrorAction Stop
            Write-Host "Renamed: '$($folder.Name)' to '$newName'"
        }
        catch {
            Write-Host "Error renaming '$($folder.Name)': $_"
        }
    }
    else {
        Write-Host "Skipping '$($folder.Name)' - It isn't named X,Y"
    }
}