The message you get means that the laptop cannot detect the primary boot device. In your case, that should be the hard drive. Please open the BIOS menu and check if the drive is recognized. If it is, boot from a Windows installation drive and try to Repair/Reinstall the OS.
If the drive is not recognized in BIOS and the laptop is under warranty, contact the seller and ask for assistance. If warranty has expired, open the laptop and check if the hard drive is properly connected. If you have the option, test it on a desktop PC, as a secondary storage drive. If the drive is still not recognized, unfortunately it may have failed and you need to replace it.
Hope this helps