Dropping a quick note on Powershell, which is a powerful language with a terrible syntax.

If you want to recursively delete files and folders, don't do this:

Remove-Item $d.FullName -Recurse -Force -Verbose
    

It will be slow.

Do this:

$d.Delete($true);
    

Much faster. In this case $d is the variable representing the file system object you want to delete recursively.