One thing you might want to try is resetting your UEFI settings and looking for ‘boot keys’ / ‘secure boot reset’ within the UEFI settings. It varies model to model but try resetting absolutely everything to defaults and see if it resolves
Hi thanks for getting back to me
-Where exactly in the boot process do you see this error?
It’s after the lenovo boot logo comes up
-What make/model of laptop do you have?
lenovo ideapad s340
-Which version of Ubuntu have you installed?
20.04
One thing you might want to try is resetting your UEFI settings and looking for ‘boot keys’ / ‘secure boot reset’ within the UEFI settings. It varies model to model but try resetting absolutely everything to defaults and see if it resolves
At first it didnt work but I then reset both the UEFI keys and entire BIOS settings, then changed from setup mode to normal mode and this has stopped the issue! another error briefly flashes on screen but my laptop doesnt get stuck on this screen at least!