The key is in the Registry, if the Registry can be accessed, the key can be retrieved and decoded. I would try this, first thing: http://www.nirsoft.net/utils/product_cd_key_viewer.html Next: http://www.magicaljellybean.com/keyfinder/ jaclaz If the company has installed a system "with their own package". Then you cannot use their COA key. Through a Windows registry COA recovery ie http://www.nirsoft.net/utils/product_cd_key_viewer.html