Reinstall the program: Reinstall the program that is generating the hpfpaw73.dll error. In case the hpfpaw73.dll error happens when you run a specific program, then reinstalling said program application could help. By reinstalling a software, whether it be a productivity utility, a game, or even an office program, you substitute all of the program documents, registry entries, and hpfpaw73.dll files required for the application to run. To reinstall a program in the most proper means possible, you need to uninstall it entirely first.