Frequently Asked Questions I heard that Drive Prophet is free to law enforcement agencies.  Is that true?  Yes, there is a law enforcement version that is free to US law enforcement agencies. I am a law enforcement officer.  How can I get the free version? Go to the National Repository for Digital Forensic Intelligence. Why can’t I run Drive Prophet against the C: drive on my computer? You can, but due to the security settings on folders, you will not get accurate results. Does Drive Prophet run on 64bit Windows? Yes, it does.  It has been tested with Windows 64 Vista and 7.   Guardian Digital Forensics is a YourTechnician.com, Inc. company