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Support Center / Setup and use / How to use Permanent Kill Switch on our Windows app

How to use Permanent Kill Switch on our Windows app

As discussed in Introducing Permanent Kill Switch for Windows, our Permanent Kill Switch feature prevents your device from connecting to the internet unless it is connected to a ProtonVPN server.

What is Permanent Kill Switch?

Permanent Kill Switch ensures that you do not accidentally connect to the internet without a ProtonVPN connection. Like the similar Kill Switch feature, Permanent Kill Switch will disable your internet connection during accidental VPN dropouts until a connection can be automatically re-established. 

Unlike Kill Switch, it also prevents you from accidentally using the internet without the VPN turned on, and it will persist when you shut down and restart your system. You will not be able to connect to the internet if you manually disconnect the VPN without also disabling Permanent Kill Switch.

Whether you should use Kill Switch or Permanent Kill Switch will depend on your needs and threat model. Both Kill Switches will protect you against accidental VPN dropouts, but Permanent Kill Switch provides additional protection by ensuring you never accidentally access the internet without the VPN enabled.

However, Kill Switch might be a better option if you sometimes want to access the internet without a VPN.

To enable Permanent Kill Switch

Open the ProtonVPN app for Windows and:

  1. Click or touch the Kill Switch icon in the Quick Settings Bar.
  2. Select Permanent Kill Switch.

All internet connections into and out of your Windows device will now be blocked unless a VPN connection to a ProtonVPN server is active.  

Enable Permanent Kill Switch

To disable Permanent Kill Switch

Open the ProtonVPN app for Windows and:

  1. Click or touch the Kill Switch icon in the Quick Settings Bar.
  2. Select Kill Switch Off (or Kill Switch On to use the regular non-persistent Kill Switch instead).

You must disable Permanent Kill Switch to connect to the internet without an active VPN connection.

Sign up for a ProtonVPN Free plan for Windows to try Permanent Kill Switch.

FAQ

Do I have to manually reconnect the VPN if the Permanent Kill Switch is enabled?

The ProtonVPN for Windows app will always automatically try to reconnect to the last VPN server in the event of an accidental disconnection (whether or not either Kill Switch is used).

If you manually disconnect the VPN, then you will need to either manually reconnect to a VPN server or turn the Kill Switch Off before your Windows device can use the internet again.

Help! I can’t access the internet. What should I do?

If Permanent Kill Switch is enabled then your device won’t be able to access the internet until you either connect to a ProtonVPN server or disable Permanent Kill Switch.

Does Permanent Kill Switch protect me when booting up or shutting down my PC or Windows tablet?

Yes. Permanent Kill Switch creates persistent filters using the Windows Filtering Platform to prevent all internet connections outside the VPN interface. These filters remain in place when you start up, shutdown, or reboot your device.

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