Once you have downloaded and installed your VPN, it’s time to start it up. Locate your application from your Applications folder, Taskbar, or desktop/home screen.  On Windows, you may have an icon on your desktop or you may need to click on the Windows icon in the lower-left corner of the screen and select the program from the Taskbar or the Programs menu. On a Mac, you can find your VPN application in your ‘’’Applications’’’ folder. Most VPN applications will give you easy to follow prompts that get you started if this is your first time using the software. Some services like CyberGhost don’t require you to do anything but click the big yellow button in the center of the application. Other’s like TunnelBear ask you to set up an account. You can also edit your preferences to tailor your experience.  Most applications give you the option to automatically connect upon startup of your computer. You may also have the option for TCP overrides. This override means that if your internet service provider throttles your connection, you can choose to force your VPN to use a TCP (Transmission Control Protocol) which is more stable, though sometimes a bit slower. If you don’t have an account you may have to sign up. If you are using a company's VPN, or most personal software, this will grant you secure access to your network. At this point, operations vary depending on how your company has configured its VPN access. The VPN software may open a new window that looks like your desktop at work, also known as a virtual desktop, where you can access your company resources. Or, you may need to launch your web browser and enter a secure web address where you can access your company's resources. If your VPN session does not launch a virtual desktop, your IT department should provide you with instructions for accessing your resources. Now that you are signed up and logged in, you can begin running your VPN to protect your identity, access protected files on a network, or access websites and content not available in your country....

TL;DR in Indonesian:
Setelah program VPN terpasang, bukalah program tersebut dari folder Application, bilah tugas, atau desktop/layar awal. Ikuti panduan di layar. Masukkan nama pengguna dan kata sandi saat diminta. Jalankan VPN.