I have never heard of that PSU. On the side of it you find a list of what it can do on the 3 voltage lines: 3,3 volt - ? amp. 5 volt - ? amp 12 volt - ? amp.
When you uninstall a program you use either Windows ControlPanel or the program's own uninstaller. It will otherwise not uninstall correctly. And if it is not uninstalled correctly it will afterwards not install correctly again. Especially if it auto-starts.
Please try this: Install the program. Then click Start, and there Program. Go with the mouse to the program's Start Menu folder and click the Uninstall icon.