i have a windows 7 packard bell laptop and had 80gb of free space on it yesterday,i didnt download or install anthing but when I turned on my laptop this morning it said i have less then 5gb of free space. I have run my antivirus and nothing came up. i uninstalled some software but still havent recovered the 70gb or so worth of space. In the installed software it has stuff like Microsoft visual c++ is that needed?? Is there anyway of seeing what has taken up that much space??