The download was successful, no data was lost however my touchpad has become a bit temperamental. For example, after I type anything, it takes up to two seconds for the touchpad to respond. Also when I do the two-finger scroll it doesn't always work. My laptop is a Toshiba Satellite C660-184 intel dual-core i3 which I got in 2010. Prior to the download, the OS it ran on was Windows 7. Is this just coincidence and a general hardware problem or is it a bug of some kind caused by the new OS?