Before update bug fixes into the windows based application , We should have an updated patch shared by the development team. 1)Closed application and stopped all running services respective to the application 2)Go the app installation drive ex. "C" Drive. 3)Go to the Program Files-> Application Folder-> "ABC" 4)Copy all updated patch files and replace them into the project folder. Ex. ABC 5)Then launch the application. Your bug fixes should be reflected in the application.