If you can't install it and you're using Windows XP, I suggest you update Windows Installer using the package provided by Microsoft. If you're using Windows Vista or above, update it through Windows Update. After that, run a registry cleaner from the Software Informer database and try again. Also, make sure you're logged on an Administrator account. If you can't run it, reinstall the program and configure your Windows Firewall and security application to allow Supra Power Of Silence to connect. If you still have issues, you need to contact the developer.