Computer stops at loading, forcing to go into BIOS settings

"If you need to configure or set up your computer motherboard’s CMOS, BIOS, or chipset, see the Motherboard CMOS Configuration and Setup page for instructions.

As Guarav Kumar suggested and from reading the additional comments, replace your motherboard’s CMOS battery. This is typically a CR2032 3V coin-cell battery widely available at virtually any electronics store or online."