Its also worth going to :Aceessories/System Tools/Disc Cleanup.Put a tick in the box mark 'C' and then click view files.There will most likely be loads of folders made up of random letters, if you look in these folders you will find snapshops of web page you have visited.To remove them just go back to the stage where you put a tick in the box, and select OK.This will delete the files and free up space on your hard drive.