Sony Vaio won't recover from disk

My Sony Vaio froze on me and I shut it down by the power off button
As soon as I rebooted it would go to the windows 7 loading screen and then go to a blue screen!
I tried to restore my computer with the Sony restore disk.
It would load then go to the blue screen and the mouse is present but it doesn't do anything from there! Sometimes it would bring up the command prompt and the I cursor blinks and nothing happens

Then I tried to attemped and restore with Windows 7 disk and samething happens it loads and instead of a blue screen it is black with a mouse and doesn't do anything

I tried pressing F12 and it says

Check cable connection
pme-mof: exiting intel pxe rom.

When I don't put a disk in it goes to a black screen that says

If windows files have been damaged or configured incorrectly, start up repair can help diagnose it! and sooo on!

Someone help me!

The first thing to check is whether the hard disk is physically connected to the motherboard properly. To do so:

• Shut down and turn off the computer
• Remove the AC Adapter
• Remove the battery
• Hold down the power button for 15-30 seconds to close the circuit and drain any residual power
• Remove the panel on the underside of the laptop where the hard disk is housed
• Remove and re-insert the hard disk by sliding it away from the connector and then gently but firmly pressing it back into the connector (no screws should need to be removed to do this step)
• Replace the panel on the underside of the laptop to cover the hard disk
• Replace the battery
• Replace the AC Adapter
• Turn on the computer and see how it responds

Post back once these steps have been implemented whether the system is stable. Sometimes these crashes can occur due to a loose connection.