Andreas Software
Free programs for Windows by Andreas Jönsson

Program

AS-Overwrite Free Space 1.0 - Overwrite free space on a storage device.

AS-Overwrite Free Space 1.0
Screenshot of AS-Overwrite Free Space 1.0

The program overwrites all free space on a storage device. This means that the content in all files previously stored on the device is overwritten with random information. The only thing you need to do is to choose a device and press on Run.

Benefits

> Download AS-Overwrite Free Space 1.0 (Zip, 1.13 MB)

Revision Date: 2022-12-10.
License: Freeware.
Unicode Support: Yes.
Program Type: Fully portable, x64.
Operating System(s): Windows 7, 8, 8.1, 10 and 11. (Also the Server versions.)
Language(s): English and Swedish.

This is the program's official website - download the program here to get the latest version/revision. The program is free.

Information regarding the system drive (in operation)

It's not recommended to use the program on the system drive (in operation) since the system and most programs are built with the assumption that there are free space available.