mac keeps asking for password for time machine disk

If you've ever used BitLocker encrypted Windows 10, you'll find that Windows 10 allows users to enter the user defined password instead of the recovery key to start Windows 10.

In this case, we have to choose either to carry the USB startup key or not to use BitLocker. This is very inconvenient for people who don't want to carry a USB key, because the length of the recovery key is 48 bytes which is difficult for us to remember. If you do not have or insert this USB key, Windows 7 will prompt you to enter the BitLocker recovery key to start the computer. After encryption is complete, you need to insert this USB key to the computer evert time you boots up Windows. When you encrypt the Windows 7 operating system partition using the Windows 7 built-in BitLocker Drive Encryption program, the encryption program will ask you to insert a USB key to save the BitLocker startup key. My question is: How to Fix BitLocker Keeps Asking for the Recovery Key for Every Windows 7 Boot? I hope to find a solution to this issue through Google, but in the end I got nothing. After encryption is done, the BitLocker keeps asking for the recovery key every time the machine boots up unless I plug in the USB key before starting the computer. I have an old Dell laptop with Windows 7 installed, recently I used BitLocker to encrypt the Windows 7 operating system partition.

Mac keeps asking for password for time machine disk