Why isn't windows 8 starting.. Nothing happened?

[Dell Inc.]

Hello Jt,
My name is Krishna and I work for the Social Media and Community Team at Dell. Try the steps mentioned below and see if it helps.

1. Restart the laptop and start tapping the F2 key at the Dell logo for enter the BIOS.
2. Navigate to the “Advanced” menu.
3. Change the SATA operation/selection in BIOS from Intel Smart Response to AHCI.
4. Press F10 to save changes and exit.
5. Reboot the system.
6. Go back into the BIOS by tapping the F2 key and change the SATA operation/selection in BIOS from AHCI to Intel Smart Response.
7. Save changes and exit by pressing the F10 key.
8. Reboot the system and it should boot normally into Windows.

Regards,
Dell-Kris K
Dell Social Media and Communities