Yeah...I am unsure what you can do with it.
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You need to get hold of memtest and you also need to check the status of your hard drive...(laptop) because these are two areas that Win XP Home is sensitive about.
www.memtest86.com
do a search on this forum to see where to get knoppix (a linux tool) as it is said to be worthwhile...and I think it is free.
I know that Dell for example, tend to want users to go with Win XP Pro on the laptops as it has more features and is more stable.
But memory is a thing that typically causes probs, particularly as systems age.
Roley
Black Frog Tech