yes it has, in autoboot mode so it really was not adding any protection.
it depends on whether the drive is encrypted or not - you should work with your EEPC team to work out the correct approach.
i got report from EEPC team the machine is not found on the server, so is that mean the pc with EEPC installed but not found in the server is not encrypted? and could i repair it with windows CD?
no, it just means they deleted it. The preboot cant be active without a record being created on the server.