Delete Files and Folders Older Than X Days (http://elderec.org/2012/02/scripting-delete-files-and-folders-older-than-x-days/)

DeleteFilesAndFoldersOlderThanXDays.ps1

# set folder path
$dump_path = "d:\temp"
 
# set min age of files
$max_days = "-1"
  
# get the current date
$curr_date = Get-Date
 
# determine how far back we go based on current date
$del_date = $curr_date.AddDays($max_days)
 
# delete the files
Get-ChildItem $dump_path -Recurse | Where-Object { $_.LastWriteTime -lt $del_date } | Remove-Item