If, for whatever reason, you want to stay with XP it might be prudent to download the latest XP install (Service Pack 3) and all up to date patches.
It's unlikely MS will pull them after 4th April Doomsday (they still have Windows 98 available for download) but you never know
Microsoft Windows XP SP3 - 32bit downloadMicrosoft Windows XP all patches since SP3 to dateBecause that last link provides the latest patch kit, I expect the March version will add further XP patches to the February version available now.
Usefully, that same ISO has all up to date patches for Windows Vista, 7 and 8 too - so you don't need to spend hours on the Windows Update site following a re-install