But if you made major changes to your PC, or an administrator has triggered a security event, you may need to input your BitLocker recovery key to get into Windows. Don't have it at hand?

May’s KB5058379 update is causing some annoying problems, like making Windows request the BitLocker recovery key on startup on ... affects computers from Dell, HP, and Lenovo running Windows ...

On devices with BitLocker enabled, BitLocker requires the input of your BitLocker recovery key to initiate an Automatic ... devices from Lenovo, Dell, and HP being affected, so it's unclear ...

Some devices it caused triggering bitlocker key window after restart ... shown the BitLocker recovery screen. There are reports of devices from Lenovo, Dell, and HP being impacted by this ...