1- Uninstalled AIS
2- Deleted left directory completely
3- Restart Windows
4- Installed AIS
5- Restart Windows

Yet SecureLine doesn’t connect while Avast Firewall is On (stuck in connecting to server) it will connect immediately on turning off Avast Firewall.

Update #1

While SecureLine is connected (and Firewall is off), if I turn Firewall on again it will block SecureLine VPN and network will switch back to its origin