Live 8:no Hardware Code is required.Live 7 and earlier:the Hardware Code is presented in the Live Unlock dialog window after installation.
The following procedure can only be performed by your computer's administrator.
Each computer requires its own unique authorization/unlock. You have to authorize/unlock Live again on your new computer.
Live uses a challenge/response copy protection and authorization process unique to each computer.Please see our authorize/unlock instructions here for more details.