Why we need this tool? When a computer 'delete' files and folders, it does not actually remove the contents of the files but rather simply unlinks them from the file directory. These files could be easily recovered by data recovery software. Thus Never give away or sell a PC without erasing the hard drive completely. This bootable USB is used to securely erase the entire contents of disks and keep your files and folders that were stored on your device from falling into the wrong hands. It can wipe a single drive or multiple disks simultaneously. This product is compatible with 32- and 64-bit computers and should work with any brands’ laptop and desktop which support USB boot. If you have an issue, please contact us before leaving a feedback. We will try our best to help.