$rc='C:\ProgramData\acg-backup\rclone\rclone.exe'
foreach ($d in 'C:\Windows','C:\Program Files','C:\Program Files (x86)','C:\ProgramData','C:\Users') {
  $out = & $rc size $d --skip-links 2>$null | Select-String 'Total size'
  "$d :: $out"
}
'--- C:\ root files (pagefile etc) ---'
Get-ChildItem 'C:\' -File -Force -ErrorAction SilentlyContinue | Select-Object Name,@{n='GB';e={[math]::Round($_.Length/1GB,1)}} | Format-Table -AutoSize | Out-String
'--- D:\vault ---'
Test-Path 'D:\vault'