Hi, I have a Sony VAIO Pentium Dual Core with 3GB of DDR2 RAM, Windows 7 Ultimate 64Bit installed.. it's sometimes slow in very normal tasks like when browsing web (Firefox latest version) while watching a video for example, and sometimes in tasks even less than that, I have Avast Internet Security installed and some really normal apps, I always choose the lightest apps to run my tasks and it is still slow, I have heard that the 32bit version of Windows can be lighter and faster.. is this true? and What if I installed the Home Premium version? is Windows 8 32Bit better for me? I was also thinking about installing Ubuntu as a main operating system, I would have no problem if it's faster and it can help me doing everything I need.. I am a medical student, all my tasks on this Laptop are so simple like browsing the web and watching videos on YouTube, sometimes I play small games and that's all...I have no problem with getting a new Windows even if I have to pay for it as long as it makes this laptop work better.. thanks for this amazing site, hope you guys can help