Autodesk username, Autodesk Internal ID number, Windows username and unique identifiers of hardware of your computer are stored for licensing purposes. This information is neccessary for using NonicaTab PRO. The licensee maintains its full right to delete/remove such information when declining the renewal of the software. NonicaTab PRO will not shared that information with any third party company unless it is required judicially by law. Please contact with any further doubt/request.