I am looking for a quick way to delete restored servers that are restored to a folder using Commvault backup software

I need to do test restores using our Commvault backup software. We backup several physical servers and since then are not VMs I need to to do file backups and restore the entire server to a large drive on a test server and i usually put then in a folder Servername-Restore. The restore process works fine but I eventually run out of space on the test server drive that I am putting these restores on. We are using a Windows 2012r2 Domain. When I got to delete the folder of the restore server I always get permissions issues and files and folder that will not delete. I am a domain admin and I take ownership of the folder and make sure inheritance is enabled but i still get permission problems and end up drilling down the C drive and D drive of the restored server and deleting one folder at a time. This is a lengthy process and last time I just reformatted the drive to make sure for other restores but it seems there should be a better way. I am missing something obvious? Is there a quick way for a domain admin to deleted a restored server all at once?