By the way, If anyone wants to convert their duplicate XP into valid one, I can help you. (it is a minor twik of registry key of system... nothing need to install..). After that, your XP will be 100% valid, you can download any patches/updates/software from Microsoft.com (i.e. your system will passes online validity test from MS) ;-)

Anyone needing help, message me.. I can not paste the trick here for some obvious reasons..

ty.