No boot device found

[lalit_17]

Hello,
when i on my laptop[cq40-compaq] black screen showa no boot device found- insert boot device and press any key

 

[hang-the-9]

Check in the BIOS and make sure your hard-drive is listed in the boot order. If no hard-drive is listed, reseat the drive, try again. If that does not work, try a new hard-drive.