Maria had never updated a BIOS. She knew it was risky: a power failure or wrong file could brick the laptop. But the constant boot issues made it necessary.
Go into BIOS, go to the Boot tab, and ensure the hard drive/SSD is listed first. Also, toggle between UEFI and Legacy mode to see which works with your existing OS installation.
Owners of the ES1-512 often complain about the fan running at full speed even when the CPU is idle. A BIOS update can recalibrate the fan curve, making the laptop quieter during light tasks like web browsing or document editing.