Hi, Thank you for raising this inquiry. When you delete the store, we maintain the backend settings and content, such as your products and orders. Re-installing the atore will being those settings and content back. What you do lose is the design settings from the frontend. If you have any more concerns over the process, then please let us know. (Keep in mind that we have a Site History feature, where you can always go back to an older version if you dislike the changes) In the future, we will have a process to do this automatically.