The one thing I wish that Solidworks would do if you are doing a new install is NOT TO USE THE EXISTING file locations that you set in the system options for the various files you use. Give the installer the option to use the existing or to specify a new file location as that's the first thing that I have to change in order to prevent saving existing files with the newer version & making them useless for the older versions that are installed & get used depending on customer requirements.