Looks like you are bothered by the 4.9 Gb occupied by dll files. Did you try to identify which files are that actually? Do you have multiple versions of the same dll? Do you have any bloatware (e.g. Internet Optimizer, Media Gateway, etc.) on your new laptop? How about automatic updates for any of the installed programs?
The first thing I would do, I would find out which files in which folders are eating up my hard drive and try to uninstall the programs that brought those files to my machine in the first place.