Yes, you are right about deleting the folders, this can be done manually, but of course if you will add an advanced button, then you can also add an option there for that. I actually believe that having a separate small button and window for advanced options would be a good idea for the moment, or you can just add line in an XML settings file, like Advanced options=1 and if it is 0 the user will be prompted about not removing the stick... etc and he will see no advanced options, but if it is set as 1 (or boolean YES - your call) all advanced options will available but all prompts like the one advising not to remove the usb stick will not be displayed (an advanced user is supposed to know that) And last, from my experience at working with program GUI design, I know that the most important thing is to have a clear idea about what buttons and options you want, and then design the GUI. If you don't have a clear idea about these (like in our case, where the functionality is developed along with the GUI), the best option is to go with a tabbed design. This way, you can always rearrange the different options on different tabs without too much hassle, you can add or remove tabs, but the interface will be clean and easy to use. If you will stick to single windows, you will either have too many buttons to open them, or you will have too many or too few buttons on them, as you add/remove functionality. Hope it helps, Vially