What’s the HP’s model number? I’m not saying I’m an expert, but have been lurking the site for a while now, off and on. I sometimes try to help, mainly with 9x and/or older HP issues, on a computer forum. The complete model specs will be easy to find.
I’m like you. I’m running the motherboard and hard drive from my first machine. At my age, I get used to something and don’t really care for change, though I like times such as when someone brings around another to tinker and learn with.
Pavilion XT 963 I think. It has XP but that might be an upgrade..