Laptop Will Not Start - Won't Reinstall Windows

My laptop will not boot. It won't boot from the W7 disc either. I tried re-installing Windows and it just restarted and went back to how it was before. So I tried formatting all drives and I think this was a mistake as now it's refusing to let me select a drive to install onto or even format. It just tells me that it cannot format a partition on disk 0.

It's become messed up to the point that I'm considering getting it sorted by elsewhere. Checking it's still under warranty.

Check the hard drive with the manufacturer's diagnostic tools.
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.
HD Diagnostic

How do I run that though when I can't even get into windows
I'm on another computer at the moment.

Download the the DOS CD for your HD.

When it comes to computers I am really good at some bits and other bits not so. I have no idea what I'm doing where it comes to a DOS CD and have never used one or even heard of one before now.

Wondered why I wasn't gettong replies I had marked it as solved

Just like booting the Windows 7 DVD.

Do I have to burn it to a disc

The DOS CD, Yes.

Not got a cd about but I'm using cmd disk part to format to ntfs