SSD not detected , PC not booting

Hi , I used my PC after some 5-6 months and only few minutes later my PC crashed , and was booting up in BIOS only , here even SSD was not visible in SATA connections . When tried to install Windows , no drives were detected , When I used CMD prompt through Window installation media , (Diskpart command) I was only able to see a drive of 14 GB which is obviously my usb flash drive.

I have a WD Green SATA SSD 480GB

Hi @Gm123456789
Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: