To restore recoverable files for erasing them is not a good idea.
They will be restored at a new physical adress on your harddisk -
that means that the formerly found traces still remain on your harddisk.
Try out Smart Data Scrubber.
It deletes traces of formerly deleted programs.
But you must block the outgoing connection of this program because it`s adware.
I do not exactly know what kind of entries are deleted by Smart Data scrubber -
but I wasn`t able to recover deleted files with O&O Unerase V 4.0 after using Smart Data Scrubber.
In addition you should use eraser with the following options (weekly / monthly) :
- Free Disk Space ( and MFT Records)
- Cluster Tip Area
- Directory Entries
And don`t forget to reboot after Cleaning!