Would I have to reinstall everything using a USB stick or is there an easier way?Re-install EFI? 🤷♂️
I would definitely like to keep my data and settings.
🤔 What do you mean by system update - new MacBook😯😁 or macOS update or macOS upgrade or...?It will update next time you do a system update. There might be workarounds but I have not seen any.