Dell Latitude E6400 :: Windows 7 Access - Fingerprint Security

I have the following problem: I set up an Administrator Account with password security and then add a Dell Security with fingerpint security. Now, I cannot access the Windows. The problem is the TPM cannot be connected or something like that. The scan says it accepts the scanned finger, and password is also Ok. How can I disable secure access or reset password, disable fingerprint control, etc. In BIOS I do not find any possibility to disable fingerpint but TPM activation/deactivation is there.