Hi ROHIT TOMAR,
Please note that our forum is a public platform, and we will modify your question to hide personal information in the description. Kindly ensure that you hide such details the next time you post to protect personal data.
I can understand why this looks alarming. Your PC is locked, you were already unable to receive verification codes on your registered phone number, and then after entering a different email address for verification, you received a message saying the account's security information was being changed.
However, based on the sequence of events you described, it appears that the security information change might have been triggered by your own actions. If you entered that new email address because your phone number was no longer receiving verification codes, then the email about your security information changing is most likely confirmation of the alternative verification process that you initiated.
In other words, the new email address was being set up to replace the phone number that was no longer working for verification. If that address belongs to you and you have access to it, then trying to cancel the change may actually be working against your own recovery effort, given that you were trying to give Microsoft another way to verify you when SMS verification was failing. So you can continue with that security information change request.
That said, if the new email address is not yours, then treat this as a potential account compromise and immediately start Microsoft account recovery using Microsoft's account recovery process: https://account.live.com/acsr. In the meantime, there are some other things you can check to see if you can get the SMS verification code:
- Contact your mobile carrier to check if there's any block against Microsoft
- Search your spam/block/hidden messages folders
- Contact Microsoft Support about not receiving the verification code.
Unfortunately, until you regain access to the Microsoft account, you may not be able to retrieve the BitLocker recovery key if it is stored there. Microsoft cannot recreate or bypass a lost BitLocker recovery key. If the key cannot be located from the Microsoft account or another backup location, there is no supported method to unlock the encrypted drive.
I know this is not the answer you want, but I think it’s better to be transparent rather than imply there is a workaround that doesn’t exist.
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