A problem occurred during BitLocker setup. You may need to restart BitLocker setup to continue. Error code 0x80005000.
This is the error you get when trying to enable BitLocker to a drive on a machine joined to the domain that is sitting in an OU that contains a “/” (forward slash) in its name.
Renaming the OU and remove the “/” off its name will fix the issue and you will be able to encrypt the drive you were trying to encrypt before getting BitLocker Error 0x80005000.