Enable BitLock

Hi guys,

I'm trying to enable BitLock on a Compaq 6515b notebook which has built-in

TMP 1.2. There are 2 partitions on it, one is 2GB and another is 30GB (both

of them are primary partitions). The Vista Ultimate 64bit is installed on the

30GB partition. All drivers including TPM drivers are installed correctly and

the notebook works quite well. But when I try to turn on BitLock in Control

Panel, there is always no volume available for BitLock.

Is there anything wrong with my settings?

Thanks a lot.

--

Regards,

R. Yang