Is there any way to change the Bitlocker Recovery Key?
To my knowledge you can only change the recovery key by completely decrypting the drive (not disabling) and encrypting it again.
You can change the recovery password without decrypting in one of two ways 1) using the manage-bde tool or 2) using the Win32_EncryptableVolume WMI interface. The first method doesn't require any programming/scripting so we'll go that route.
Assume X: is the BitLocker protected drive you want to change recovery password for.
And you're done! You've changed your recovery password.
Note: If you get an error when you try to delete the recovery password, this is likely because a recovery password is required by Group Policy on your system. To get around this, first suspend BitLocker with