Windows XP - tricky Stop error

[obscureness]

Hi all, first time poster here so I apologize if I'm in the wrong section or if I'm generally rubbish

I switched my PC on on Friday and recieved this blue screen:

When I try Safe Mode in any form I get the same message and can get no further. I haven't made any hardware changes recently, and as far as I know I haven't downloaded anything dodgy.

I really don't know how best to deal with something like this, so any advice would be appreciated!

 

[Madxgraphics]

Can you let us know what OS you are running please..Have you tried doing a repair/recover from your OS CD..?

 

[obscureness]

I don't know much about the OS beyond XP home edition. It's an inherited PC so I don't know where the OS cd is, which is a major pain.