Fixing “GRUB loading, please wait…” error at startup

There’s a bunch of posts online on how to fix different kinds of “GRUB loading” errors, with error code.

However, sometimes you get a BIOS error like this, at startup, without an error code.

GRUB loading. Please wait.

One thing that can cause this is if you have a USB stick connected to the computer at startup. Remove the USB stick, reboot the computer, and it might fix the problem.