I have a desk top running XP that seems to be pretty slow. It has a Pentium 4 CPU 2.4 GHz processor and 3.0 GB of 2.39 GHz ram. Compared to my little Asus notebook running Windows 8.1 it's like molasses loading pages while I surf the web. Would I be better off to upgrade to windows 7 or have I picked up some kind of bloatware or something causing the XP to run slow? All I do is surf and email. I am marginally computer literate. Any help would be appreciated.