no operating system found

Sony Viao had problems now when i turn it on i get no operating system found.

I was running Vista home premium.

I have back up disc but cant get it to boot from my dvd rom?

Any help?

  VOT Productions 12:36 09 Aug 10

Hard Disk or MBR failed.

Make sure you got your data backed up and go to BIOS and look for Boot Order, etc and Put DVD-ROM as the first one using the instructions on the screen. Then save changes, put the disc in and restart.

Hi i have done this but i still get the no operation system found.

I wont boot from the internal disc either

  Fruit Bat /\0/\ 18:41 09 Aug 10

Boot to BIOS and see if it detects your hard drive there.
Change boot order to set DVD as first boot device, press F10 to save and exit.

Is the BIOS detecting the drive?

If not remove and refit the hard drive to remake the connections see if it will then boot.

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