Is there a way to turn on BitLocker without a TPM or a USB? I would just want to encrypt the disk. The computer is in a locked room with lots of security, so I'm not worried about someone stealing it. So really I just want to encrypt the drive without TPM or USB, it this possible?

Afaik, a TPM chipset is required for BitLockerBrandon Wilson - Premier Field Engineer (Platforms)

Hi, As far as I know, BitLocker supports five configurations: TPM only, TPM+PIN, TPM + Startup Key, TPM + PIN + Startup Key, Startup Key only. ( Startup Key method eeds a USB flash drive containing the startup key.) So there is no way to BitLocker without TPM or USB flash. BitLocker Drive Encryption Overview http://technet.microsoft.com/en-us/library/cc732774.aspx Hope that helps.

The Operating System Drive can be encrypted if you use a USB device for storage of the key. Feel free to refer to the GPMC in Computer Configuration > Policies > Administrative Templates > Windows Components > BitLocker Drive Encryption > Operating System Drives > Require additional authentication at startup. You'll see that BitLocker can be configured to use USB as a startup option.

If you can re-partition the disk, you could encrypt a non-OS disk with BitLocker without having to have a TPM or USB device. You'll just need to manually type in your password every time the computer is rebooted.