Hi @Muhammad Farid Rahmatulloh
Thanks for reaching out to Microsoft Q&A.
I'm pasting the answer from this Q&A, let me know if that helps - https://learn.microsoft.com/en-us/answers/questions/1190936/azure-ad-how-to-recover-bitlocker-key-from-deleted
"if the device has been recently deleted (not hard removed), You may try to recover the key by
- Navigating to https://account.microsoft.com/devices/recoverykey
- Sign-in with impacted UPN with which device was joined or registered.
- Look for the device name and hit view Bitlocker recovery key.
- Once recovered the device must be disabled from this page and should be rejoined/registered to Azure AD
- If this does not help then you may approach our support to confirm the possibility."
Thanks,
Fabio