copy appsettings 3dsmax folder on flash drive and replace the appsetting 3dsmax folder on the new machine must be somwehere in c\users\yourname\appsetting or application settings(hidden folder usually)\ something i dont know probabgly multible folders\3dsmax
You can also save out the UI in max and load that into the new version. It won't save any custom scripts that you've installed and hopefully they've installed to the folder that arrangemonk talked about, if not you'll need to dig them out of the 3dsmax folder or reinstall them as per the scripts instructions and hope that…