Код:
#Powershell script.
#Don't forget unlock script executing by
#using command "Set-ExecutionPolicy RemoteSigned" or "Set-ExecutionPolicy Unrestricted"
#Save this file with ".ps1" extension
gci "d:\*" -Recurse | ? {$_.Attributes -ne [System.IO.FileAttributes]::Directory} | ? {$_.Length -lt 50KB} | Remove-Item -Recurse -WhatIf
Если правильно, убрать -WhatIf
