Is your system UEFI or BIOS based?
#Reset Bios can't find OS
true cobalt
p.s.
By I reset my bios I assume you mean to wiping the nonvolatile firmware memory.
BIOS (Basic Input/Output System) and UEFI are different pieces of firmware used to provide runtime services to operating systems, and to initialise hardware during the boot process.
small sluice