Hi all,
My problem still occurs, it’s really annoying. No way to boot on my system without the USB drive.
Secure Boot was not enabled, but i see and can access to the key management ; it was on “user” and reverted to “system”. When i rebooted, Fedora proposed me to update the UEFI Secure boot database key management like this post : Can't update 'Secure Boot dbx Configuration Update'
Hope to have some news on my issue.