HP Pro 3120 Small Form Factor-PC - Manual (Page 19)

2. Select the items on the right side of the Simple Delete Settings window that you want to permanently
delete on a regular basis and click the <-Add button to move the selected items to the Delete side.
3. Start with Recycle Bin and add other items you may want to erase by Shredding.
4. Click the Apply button when you have selected everything you want permanently erased
ENWW File Sanitizer for HP ProtectTools 11