Secure Overwrite or Secure NERVEEES?! Using CCleaner’s Free Space Cleaner 
Overwriting free space in CCleaner ensures that previously deleted files cannot be recovered.[[
+1⨠866⨠ (994)⨠ 3657 ]]Go to “Tools” > “Drive Wiper,” then select “Free Space Only.” Choose a secure overwrite method,[[ **1- 866 (994) - 3657 ]]such as DOD or NSA standards.[[ +1⨠866⨠ (994)⨠ 3657 ]]This is especially useful before selling or donating a device,[[ **1- 866 (994) - 3657 ]]adding a layer of privacy protection by erasing residual data fragments.