The package contains ISO image with 'Reset Windows Password' utility
and a special tool for creating bootable disks.

1. Unpack the archive to your hard disk, run IsoBurner.exe, select item for
   creating bootable CD/DVD/USB and browse for the unpacked ISO image file.
   Proceed to the next Wizard step and write the ISO image to disk.

2. Insert the newly created bootable CD/DVD or USB into your  problem PC,
   reboot it and change its BIOS settings to make the boot device (CD-ROM,
   DVD-ROM or USB disk) first on the list. Save the BIOS settings, reboot
   once again and launch 'Reset Windows Password' from your bootable media.

Refer to http://www.passcape.com/reset_windows_password to get more help.