Добавление дополнительного условия

$limit = (Get-Date).AddDays(-N)
$path = "C:\Temp"
Get-ChildItem -Path $path -Recurse -Force | Where-Object { !$_.PSIsContainer -and $_.CreationTime -lt $limit } | Remove-Item -Force -WhatIf
Get-ChildItem -Path $path -Recurse -Force | Where-Object { $_.PSIsContainer -and (Get-ChildItem -Path $_.FullName -Recurse -Force | Where-Object { !$_.PSIsContainer }) -eq $null } | Remove-Item -Force -Recurse -WhatIf

$environments = @{
    ageInDays = '10'
    workPath = 'c:\tmp\001'
    limitInGB = 20
}
 
if ([int64](gwmi -query ("select FreeSpace from Win32_LogicalDisk where DeviceID='" + ($environments.workPath[0].ToString().toUpper()) + ":'")).FreeSpace -lt ([math]::pow(2,30) * [int64]$environments.limitInGB))
{
    Get-ChildItem -Path $environments.workPath -Recurse -Force | ? { !$_.PSIsContainer -and $_.CreationTime -lt ((Get-Date).AddDays(-($environments.ageInDays)))} | Remove-Item -Force -WhatIf
    Get-ChildItem -Path $environments.workPath -Recurse -Force | ? { $_.PSIsContainer -and (Get-ChildItem -Path $_.FullName -Recurse -Force | ? { !$_.PSIsContainer }) -eq $null } | Remove-Item -Force -Recurse -WhatIf
}