How to block access to the Internet without vpn on Windows 10?

Question

openvpn

Good day!
I use the openVPN client, when using it, it turned out that if the vpn disappears, then the normal network simply turns on. Please tell me how to disable access to the Internet without vpn?
I use windows 10

Answer 1

https://zorrovpn.com/articles/windows-firewall-vpn-only
Here's how to do it, works on windows 10 too)
Thank you very much everyone!

Answer 2

If you use third-party VPN services, then pay attention to the presence of the KillSwitch function. In Russian translation, it may differ, but the essence is the same.
For example, in our Windows client it is called "Turn off the default gateway", with the options "When the VPN is connected" and "When the program starts". In the second case, no programs will have access to the Internet until you connect to one of the VPN servers.
A similar feature called "Connection Security" is available in iOS/macOS clients. Enabled by default. It works quite simply: after clicking on the connect button, the Internet will only work through the VPN. Neither disconnections nor reconnections will allow connections to enter the network under a real address. Until you yourself press "