How to delete settings for a .Net application
Some .Net applications (built with Visual Studio 2005 or later) utilize the
My.Settings object for storing user application settings. Sometimes if an
application fails to load after you've previously witnessed it load successfully,
it is possible that one of the settings is to blame. Windows
controls the storage location for these settings and it varies between different
versions of Windows.
For Windows XP or Windows 2000:
and Settings\YourUserName\Local Settings\Application Data\Manufacturer"
For Windows 10, 8, 7, or Windows Vista:
Make sure the app is not running. Once you navigate to the settings
storage folder, you may see multiple folders within it all starting with the
application name, or possibly other application names from the same manufacturer
as well. Delete all of the folders that
start with the name of the application your trying to reset (DO NOT delete any
deleting the folders, restart the application and it will start with the default
settings set for the app.