1. login in myaccount.microsoft.com
like abc.d@standard-group.com
2. go to Devices option
3. Click the Downarrow option
4. View Bitlocker Keys option will be visible after a while
5. Click View Bitlocker Keys
6. Click Show Recovery Key
7. Copy the Recovery Key
8. Click the drive to recover & paste Recovery Key into Recovery Key option
View https://www.youtube.com/watch?v=J1UMvVuyQAU