If you see This PC doesn't support entering a BitLocker recovery password during startup, enable WinRE, tweak Group Policy, ...

If Bitlocker keeps asking for Recovery key at startup in Windows 11/10 you can get out of the BitLocker Recovery loop by following these steps.

Yet somehow Bitlocker got enabled on Windows 10 boot and shared data partitions. Both encrypted partitions can be accessed without issue from Win 10 (there's not even a password/PIN prompt), but ...