Error loading os message xp

[HarryO61]

Hello,
My name is Harry and I have a problem on my HP A420N desktop. As soon as I try to turn it on all I get is an error loading OS on a black screen. That is as far as I can go Please help.

 

[David 617]

You need to be more descriptive, but it sounds like you have a hard drive problem.

is this your problem - http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01457284&lc=en&dlc=en&cc=us&product=388431