OK it looks like it was a windows update that killed you. Next we will see if it changed your hard drive type
Enable AHCI by following either of the steps below, depending on your board model:
1.Press the F2 key after the Power-On-Self-Test (POST) memory test begins.
2.Select the Configuration menu, then the SATA D rives menu.
3.Set the Chipset SATA Mode to AHCI.
4.Press the F10 key to save the BIOS settings and exit the BIOS Setup program.