Can you expand on this? I can't remember ever having a registry problem caused by XP itself, nor any issues with TCP/IP. Drivers are a fair call, though.
Nothing caused by XP itself, mostly issues which come up that seemed (at least to me - as a non-SW guy) to be connected with the immaturity of XP. Its been some years but I remember often playing around in the TCP/IP panel to fix internet issues when setting up new wifi networks - this seems to just work in W10. I don't mean special networks with static IPs or some special configurations, I mean just moms network at home. Today its very plug and play. Concerning registry it was the same - no issues concerning XP specifically but I remember having to change a lot of things in there to get things to work how I wanted them. Seems these settings are just in a menu now in W10. Its more a user experience thing rather than specific bugs or issues.