What OS are you using? What version of StableBit DrivePool are you using?        The reason I ask, is that encrypting the pool is fine.  But this MUST be done to the individual disks in the pool.  Additionally, you'd need to do this:  http://wiki.covecube.com/StableBit_DrivePool_2.x_Advanced_Settings Set "BitLocker_PoolPartUnlockDetect" to "True", and reboot the system.    Or install the Public beta build (2.2.0.651) or the internal beta (what I'd recommend): http://dl.covecube.com/Dr