Fix Error Default Boot Device Missing or Boot Failed on Windows 10

Error: Default Boot Device Missing or Boot Failed
Laptop: Lenovo Ideapad 310S-111AP
OS: Windows 10

This problem is caused by a change in the BIOS settings in the "Boot Mode" menu. In many cases, due to some reason, suddenly the BIOS settings are back in the default position.

Causes of the error:
1. CMOS batery runs out. When the CMOS battery runs out, the BIOS settings will return to default. In this case, Windows 10 is installed with the Boot Mode "Legacy Support" setting. When the CMOS battery runs out, the BIOS setting for Boot Mode returns to the default which is "UEFI Boot Type". The characteristics of the CMOS battery run out are, the BIOS system date does not match the current date, or the system date goes back several years. If the system date in the BIOS matches the current date, it means that the user accidentally changed the Boot Mode settings in the BIOS.

2. Changing the Boot Mode settings by the user accidentally. In the BIOS settings on the "Exit" tab, there is an option "Restore Default BIOS Settings". If the user selects "Restore Default BIOS Settings" and then selects "Exit Saving Changes", the BIOS settings will return to default.

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[aventuratepokut]

I dont have option to choose
help pls