how to recover BitLocker key which connects with account that I cannot loggin

[Windows 10]

I recently reset my laptop and logged in with my new Microsoft account since I forgot my old account's password. But my drive was locked by BitLocker which connected to my old account. Meanwhile, I am not able to recover its password since I was told the email which connected to that old account was closed by administrator, and I need to pay money in order to unlock it. What should I do to get my BitLocker key to unlock my drive?

Continue reading...