My external hard drive was encrypted by bitlocker on this password (733020440) and recovery it was working fine Now after I format my laptop its unable open on this password and its required long password. this is some information : ConString="Provider=External Key: ID: {7B05018E-E639-4D0D-A471-42E793A7246B} External Key File Name: 7B05018E-E639-4D0D-A471-42E793A7246B.BEK Numerical password ID: {D88377EB-7240-4082-89AA-8280D4153BB8} Can you help me to open it please....

Hi, Do you have recovery key. If you can't understand what is Bitlocker recovery key, the below link can help you: http://windows.microsoft.com/en-US/windows7/What-is-a-BitLocker-recovery-key. Once you confirm that you saved your recovery key, you can unlock your external hard drive. If you forgot or don't save your recovery key, unfortunately the only way is that you must format your external hard drive and all data in there would be lost. Best Regards.