Bit Lock Windows7

Hello frinds,

I need to know how to lock the C drive(OS) in bit lock.
I have  encrypted the C  and D drives  with bitlock security, the D drives gets locked  after the reboot but C drive does not .
Although both the drives show lock images,  i have also enabled the TPM  security in the BIOS

Many Thanks

Who is Participating?
CanusRufusConnect With a Mentor Commented:
When you use BitLocker Drive Encryption, you need a BitLocker Drive Encryption startup key or personal identification number (PIN) to start your computer.

BitLocker stores its own encryption and decryption keys in a hardware device called the Trusted Platform Module (TPM) security hardware, which is a special microchip in some newer computers that supports advanced security features. The keys are not stored on the computer’s hard disk. The TPM must be accessible by the basic input/output system (BIOS) during startup. When you start your computer, BitLocker will get these keys from the TPM automatically.
Bitlocker is a data encryption that works in the background. If it senses an attack than it'll lock the system from booting. Otherwise the Hard Disk will always boot.This is why you do not have to "unlock" the hard Disk on boot
You could set Bitlocker to boot with USB media if that helps. Just make sure to enable to appropriate policies to allow.
Another option is to set a boot password in the BIOS.
Another option can be Truecrypt. this'll allow for a password on boot to "unlock" the hard drive.
David Johnson, CD, MVPOwnerCommented:
that sounds like a normal situation as it must be able to unlock the drive in order to boot..
Harry75Author Commented:
Yes , many thanks , we also thought the same .

many thanks for the help
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