1.Use a Malware Blocker/Antivirus Software:

It seems that UFO VPN is primarily available on macOS and Chrome, and there are no official or commercial versions of UFO VPN for Windows. However, there are alternative methods you can use to block access to unknown sources on Windows. Here are some recommendations:

• Install a malicious content blocker like ufe-blocker or matt-gear to block unknown URLs.
• These tools can help you block access to unknown sources on Windows.

2. Use a VPN:

   • Use a VPN like 223-8-28-[unknown] or other secure VPNs to encrypt your traffic and block unknown sources.

3. Use a Firewall or Antivirus:

   • Use a firewall to block access to unknown sources.
   • Use a strong antivirus software to block unknown sites.

4. Use a DNS Filter:

   Use a DNS filter to block access to unknown sources.

5. Use a Tor Browser:

   • Use a Tor browser like Tor Browser to block access to unknown sources.

6. Use a Virtual Network App (VNA):

   • Install a VNA like VNA for Windows to block access to unknown sources.

7. Use a VPN Service:

   • Use a VPN service like 223-8-28-[unknown] to encrypt your traffic.

8. Use a Secure Browser:

   • Use a secure browser like Safari or Microsoft Edge to block access to unknown sources.

Remember to always use the latest version of your antivirus software and download the latest version of a reputable VPN service to ensure security.

Here are some websites where you can download these tools:

• UFE Blocker: ufeblocker.com
• Matt-Gear: matt-gear.com
• 223-8-28-[unknown]: 223-8-28-[unknown].com
• Tor Browser: tor.com
• VNA for Windows: vna-for-windows.com
• Safari: safari.google.com
• Microsoft Edge: edge.microsoft.com