Notes about the PUP file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The PUP file type is primarily associated with 'Playstation' by Sony Corporation of America. Software updates may include security patches, new or revised settings and features and other items, which will change your current operating system. It is recommended that you always maintain your system to use the latest version of the system software.