Search Actual Data Deletion Let me start by saying that that when you use the delete option to send something to the recycle bin and then empty that bin, the only data that is actually gotten rid of is the reference to that data file. This can prove to be troubling in the event that personal access is gained to your PC by anyone with malicious intent. If you have ever simply deleted files that contain personal or financial data, the information can be retrieved.
People upgrade their computers on a regular basis.
The old PC's are sold, given away or donated to charity. There is no way of knowing ultimately where your old PC will end up. Or in whose hands. Of course, you, being the security conscience individual will delete any files that you wouldn't want anyone else to have and then put your PC in a box. You have just given away all the information you have worked so hard to secure.