BitLocker detected a bootable CD or DVD on the computer. A bootable CD or DVD affects whether the TPM can unlock the OS volume. ...

BitLocker detected a bootable CD or DVD on the computer. A bootable CD or DVD affects whether the TPM can unlock the OS volume.   ACTIONS REQUIRED:  1. Remove any bootable CD or DVD from the computer.  2. Revert any changes made to the disk by running \"manage-bde –off %1!v!\" 3. Restart the computer.    (Type \"shutdown /?\" for command line instructions.) 4. Run this command again.