It's a truely bad idea to install XP. Probably within a week of installing it and going onto the internet to do 'normal' things you'll pick up a root kit that will hold your system hostage. XP is not built from the ground up to prevent that as Win10 is. No matter how good it is, no anti-virus package is as good as chucking the whole MBR construct that enables it.
I'd only use XP on a system that's comfortably hidden behind an air- gapped firewall so it's not exposed to the internet. But if that's the case it would also never be annoyed by any of Microsoft's Windows 10 updates.
The constant updates with Win10 are intended to keep you safe, primarily with the changes that combat new and ever evolving exploits. The updates that intrude more are much less frequent at once a month. The truly annoying ones are only twice a year. They mostly happen in the background, asking you to restart when ready, and you can delay the update restart if you really need to.
these methods are all wrong and useless since Win10 has evolved. there are utilities that do what he needs done. Only in Server can you disable the update service. Try it on Win10 and it don't work, gets reneabled