Stopped working exactly 90 days after the purchase. "No bootable device found". Running BIOS diagnostics: the entire system is perfectly fine, including SSD. Trying to repair from a bootable USB dive: can't create a partition. Reseating SSD doesn't help. Apparently these refurbished computers have serious problems since the time of the original assembly (e.g., intermittent electrical connection somewhere, or the like) that could temporarily go away in the process of refurbishment, only to come back later.