Question

difference between Windows 8 and Windows HP

Answer 1

nothing just one is not modified

Answer 2

What is widows hp??
if i think it is windows xp
then
the main diff in them is

Windows XP was launched in October 2001 as an upgrade to the Windows 2000 and ME operations systems. Windows 7 and Windows 8 are the two latest operating systems by Microsoft. All of the systems have been upgraded with new features and interface changes to make the systems more interesting and appealing to the users.