$Folders = Get-ChildItem "C:\Users\91977" -Directory | Select-Object -ExpandProperty FullName



$Folders | ForEach-Object {
    $path = $_

    if (Test-Path $path) {
        $size = (Get-ChildItem $path -Recurse -File -ErrorAction SilentlyContinue |
                 Measure-Object Length -Sum).Sum

        [PSCustomObject]@{
            Folder  = $path
            Size_GB = [Math]::Round($size / 1GB, 2)
        }
    }
    else {
        [PSCustomObject]@{
            Folder  = $path
            Size_GB = "Path not found"
        }
    }
}