This post shows how to Turn On or Off BitLocker for Windows 11/10 Operating System Drives with or without TPM, using GPEDIT, Explorer & CMD.

You can fix Failed to open the BitLocker Control Panel Tool, Error Code 0x80004005 in Windows 11/10 using these proven solutions.

Essentially, the password is used in conjunction with other data and the TPM encryption to decrypt the VMK. So, without the user's password, the correct VMK cannot be obtained.