Boot problem on Lenovo IdeaCentre B540

[kalpana]

Hello,
I just installed Ubuntu 23.04 on Lenovo Ideacentre B540.

In Bios : UEFI Only, Quick Boot Disabled.

Install OK but at boot :
Error 1962: No operating system found. Press any key to repeat boot sequence.

I made a Boot report on https://pastebin.ubuntu.com/p/D8RCCbGxTZ/

Thx in advance

Arnaud