1. Download and Activate AdGuard:

   • Visit the AdGuard website and download the free version.
   • Enter the activation code "123456" and click "Sign In."

2. Configure Blocking and Unblocking:

   • Open your browser (e.g., Chrome or Firefox) and click on a site you wish to block or unblock.
   • Click "Unblock" on blocked sites and "Block" on unblocked sites. Confirm each action before proceeding.

3. Enable Out-of-Range Buffering:

   After closing the browser, go to the browser's settings and enable "Out-of-Range Buffering" to prevent browser freezes.

4. Enable HTTPS:

   Open the AdGuard Client, go to Settings, and ensure HTTPS is enabled for your websites.

5. Set Up a Filter:

   • Open the AdGuard Client, go to the Settings, and select "Add filter."
   • Enter a filter name (e.g., "block.coast"), select the sites you want to block, and set a name.
   • Click "Save" to add the filter to your account.

6. Test the Filter:

   • Use the filter in your browser to block sites, ensuring you don't click on unblocked sites.
   • Test across devices and networks, using multiple devices for security.

7. Use the Filter:

   Block and unblock sites using the filter in your browser.

8. Log Out and Sign In:

   Log out of your account and sign back in with the same credentials to avoid account issues.

By following these steps, you can effectively use AdGuard VPN for secure browsing on Windows.