Delete Files Older Than X Days with PowerShell

1. Open a new PowerShell window.
2. Type the following command:

Get-ChildItem “%userprofile%\Downloads” -Recurse | Where-Object {($_.LastWriteTime -lt (Get-Date).AddDays(-30))}| Remove-Item

If the Get-ChildItem cmdlet finds any files that are older than a month, then the Remove-Item cmdlet will be called for each file to remove it.