A BitLocker recovery key is a special key that you can create when you turn on Bitlocker Drive Encryption for the first time on each drive that you encrypt. You can use the recovery key to gain access to your BitLocker-encrypted drives.
Backup BitLocker Recovery Key
You can back up the BitLocker recovery key for an encrypted drive by printing it, saving it to your Microsoft account, saving it to a USB flash drive, and/or saving it to a file where you like. It is recommended to store the recovery key separate from your computer, and make additional copies to be safe and have available if ever needed to recover the encrypted drive with.
Delete BitLocker Recovery Key from Microsoft Account
This is how you can delete BitLocker Recovery Key from your Microsoft Account (OneDrive) in Windows 11/10.