In this document you will see how to install Microsoft Bitlocker administration and Monitoring and how to confgiure for the End Users and for Helpdesk 

Some introduction of MBAM is here below

Microsoft BitLocker Administration and Monitoring (MBAM) 2.5 provides a simplified administrative interface that you can use to manage BitLocker Drive Encryption. You configure MBAM Group Policy Templates that enable you to set BitLocker Drive Encryption policy options that are appropriate for your enterprise, and then use them to monitor client compliance with those policies. You can also report on the encryption status of an individual computer and on the enterprise as a whole. In addition, you can access recovery key information when users forget their PIN or password or when their BIOS or boot record changes.