My HP Pc will not go start properly.

Hello,

I've got an HP desktop computer of Windows XP.
I havent been using it much since i got my laptop.
Anyway, went to switch it on so i could sort out some files and it will not go passed the
'Windows did not start properly' screen. I tried starting windows normally, also tried starting in all the safemode options but i just goes back to the blue screen then right back to S Windows did not start properly.

Im fed up i wanted to sort it out so my mam could use it when she has work to do.

I'd really love any advice. Thank you.