[@Guido76] 1. “Windows XP” is the lightest system, and the fact that it does NOT support more than 4 gigabytes of memory is a minor (insignificant) drawback.
2. Others can not update that they need to use specialized programs that do not work in new systems, I have seen this in many forums.
3. Many can’t upgrade to new systems, not since there’s an easy way to upgrade XP to new OSs, with the condition that they save: installed programs.
That’s why i have on the computer, “Windows XP SP3 32bit”, and on a laptop “Windows7 64 bit” .