Erase HDD free space


New Member
I am wondering if it is possible to erase the free space on my computer HDD. I am using Windows 10 and the most current version of Eraser.

Someone tole me to open Eraser as the administrator, run the program, then to open "my computer," right click on the drive to be erased and select eraser. First, there is no "my computer," at least that I am aware of, in Windows 10, and if you simply go to the HDD and right click the option to select Eraser is not there. So, I am stumped. Maybe it isn't possible or is it?