Click Run from the start menu, and enter regeditto open the Registry Editor. Search and open HKEY_CURRENT_USER\Software\Psiphon3, and on the right side you will see SkipProxySettings. Set this value to 1and in this way Psiphon will not automatically set the system proxy settings.
https://psiphon.ca/es/faq.html

Cara Mudah Memblokir Akses Program di Windows

 http://www.pusatgratis.com/tutorial/cara-mudah-memblokir-akses-program-di-windows.html