I recently "restored" my Vaio laptop, circa 2002, running Windows XP. I have problems with reinstalling things like Flashplayer and Adobe PDF Reader. I want to upgrade to the most recent versions compatible with the hardware and XP. Should I reinstall a newer version of XP? Can I upgrade? I can't determine the version of Internet Explore that I have nor the one I should have. I find that "VAIO update" makes the computer sluggish again (reason for restore) so I'm disabling it - or trying to. Where should I start?