screen is black with letters

[amy_47]

Intel UNDI, PXE-2.1 (build083)
Copyright (C) 1997-2000 Intel Corporation

 

[Saga Lout]

Looks like the system is trying to boot through a network which might mean it can't see a system on the hard disk.

That may be failing so try starting the machine with a Windows DVD if you have one. If you can get to a stage where you can see a Command Prompt, run Checkdisk with the /r switch to fix any errors it finds. The syntax at the prompt will be
chkdsk /r
then hit Enter.