Hello again,
I am looking forward to your clarification (as per previous post).
Additionally, thinking twice, your problem seems more related to the USB, not to the missing DLL file.
In that case, you have two chances:
- if data could be lost, directly format the USB flash drive and reuse it
- if data needs to be recovered and no back up is available elsewhere, I would read these technical articles:
http://technet.microsoft.com/en-us/library/ee706522(WS.10).aspx
Manage-bde.exe Parameter Reference
http://technet.microsoft.com/en-us/library/dd875513(v=ws.10).aspx#BKMK_forcerecovery
Repair-bde.exe Parameter Reference
http://technet.microsoft.com/en-us/library/ee706528(v=ws.10).aspx
First, I would use manage-bde to try to unlock the drive. You can try this even on a different computer running either Windows 7 or Windows 8
e.g. manage-bde -unlock E: -RecoveryPassword YourPassword
(if the flash drive is E:\ and YourPassword is your password)
This is force unlock without decryption.
If the flash and the data is corrupted due to the not standard removable, last chance is to force repair on BitLocker on the flash drive with repair-bde command
e.g repair-bde E: -RecoveryPassword YourPassword
(if the flash drive is E:\ and YourPassword is your password)
More information is available in the links above