changing the user name and pass word kodi 15.2

I went to access my network drives to add my video files to kodi 15.2 .. however I got my password wrong, and now I get a error 2 message saying not allowed.. how do I change that smb password .. I tried removing kodi,and reinstalling it, but there must be some config file left over from the original version with that password on it . any help would be great..