By default in Windows 11/10, both administrators and standard users are allowed to change the BitLocker PIN or password for the operating system volume or the BitLocker password for fixed data ...

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

If you're running Windows, you've probably run into the BitLocker Recovery screen at some point. Here's everything you need to know about the Microsoft program.