If you have tried all available options in the Advanced Options section, including uninstalling the latest update, a system restore, and accessing safe mode and they all fail, then you will need to create a bootable Windows 11 USB on another working PC and boot your PC from that, then rather than installing Windows 11, select ‘Repair this Computer’ that will give you access to the Recovery Environment from there
In the Recovery Environment on the USB, try each available option.
Click this link: https://www.microsoft.com/software-download/windows11
to download the Media Creation Tool to create the bootable USB.
Then, Boot your PC from the Installation Media you just created (change Boot Order in your BIOS)