Thanks for reaching out to Microsoft Q&A Forum. I understand that you previously used a Hotmail (Microsoft) account to store your BitLocker recovery key, but you can no longer access that email account and are now unable to retrieve the BitLocker key to unlock your device.
Please make sure you already tried the Q&A Assist steps. In addition, please try the following.
To help narrow this down a bit:
1, Does the BitLocker recovery screen appear before Windows starts loading, or only after you reach the Windows sign‑in screen?
2, Was this Windows 11 Home device originally set up using a Microsoft account or a local account?
In the meantime, you can try these steps:
1, Confirm the recovery key ID shown on the BitLocker screen
- If you are able to sign in to the Microsoft account later, on the BitLocker recovery screen, carefully note the first 8 characters of the Recovery Key ID.
- This ID is required to match the correct key if multiple keys exist
2, Check for other Microsoft accounts that may have been used
- If someone else helped set up the device, the recovery key may be saved under a different Microsoft account
- Try signing in at https://aka.ms/myrecoverykey using any other Microsoft account you may have used in the past
3, Check personal backups and saved files
- Look for any printed documents, photos, or text files where the BitLocker key might have been saved
- Also check cloud storage such as OneDrive folders that may contain old device backups
4, Confirm whether the device supports automatic device encryption
- On Windows 11 Home, BitLocker is enabled as device encryption
- If you previously signed in with a Microsoft account on this device, the key is normally backed up automatically
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.