cleanup-downloads.ps1

  # Defines the '365 days old' (today's date minus 365)
$age = (Get-Date).AddDays(-365)

# Get all the files in the Downloads folder and subfolders | foreach file
Get-ChildItem -Path $env:SystemDrive\Users\*\Downloads -Recurse -Force | foreach{
    # if creationtime is 'le' (less or equal) than 365 days
    if ($_.CreationTime -le $age){
        # Write-Output "Older than 365 days - $($_.name)"
        # remove the item
        Remove-Item $_.fullname -Force -Verbose
    }else{
        # Write-Output "Less than 365 days old - $($_.name)"
        # Do stuff
    }
}