This is a two step process required to meet the requests of Asset Management Services :

1. Autonuke the Hard Drive with DBAN
   "DBAN is a means of ensuring due diligence in computer recycling, a way of preventing identity theft if you want to sell a computer, and a good way to totally clean a Microsoft Windows installation of viruses and spyware. DBAN prevents or thoroughly hinders all known techniques of hard disk forensic analysis." - http://dban.sourceforge.net/
   
   
2. Install FreeDOS
   "FreeDOS is a free DOS-compatible operating system for IBM-PC compatible systems. FreeDOS is made of up many different, separate programs that act as "packages" to the overall FreeDOS Project." - http://www.freedos.org/