You can't do it using software installed on the laptop and starting from the laptop disk, as a you can't completely wipe a system disk.
But you can use our software R-Studio Emergency. http://www.data-recovery-software.net/Data_Recovery_Download.shtml#demo.
If your laptop has a CD/DVD drive, I recommend you to download and write an ISO image, if not, you can download R-Studio Emergency GUI Startup Media Creator for Windows users and create a startup USB disk.
Upon startup, select the GUI mode. When the software asks for registration, click Cancel. When select the partition and select Drive -> WIpe on the menu. Then select the appropriate wiping algorithm.
And note! Once wiped, the data will not be possible to recover.