cannot update without Grub password - how to reset it?

[audioscavenger]

Cannot upgrade AIO from the flashdrive, at the 7z extract process it's asking for a password. Which is it?
Sorry if the question is misplaced, maybe it's the grub password? Also how do we reset the grub password? I don't recall setting one up when creating the flashdrive
Please add a simple line in readme.md stating how to delete/modify to reset the grub password, thank you very much!