I am running Windows 10 64 bit and have been using airvpn for about six months now. I have had occasional problems with the GUI failing to reappear after closing the interface and up till now killing the procedures in explorer and restarting the program, or simply restarting the machine entirely, has resolved the issue. As of this morning, I run airvpn and no GUI displays AT ALL so I have zero control over my VPN. I can't set network lock nor can I even tell if my VPN is on or off. Restarting and killing the procedures doesn't help like they used to. This is very frustrating. I ran Glary utilities quick system clean/fix as I do regularly and this problem appeared immediately thereafter. I love airvpn - consider it best vpn option out there but now if I can't resolve this issue in a timely manner I can't think of any solution but a switch to one of the less reputable ( really it seems most all these companies except air are simply 'me too's' in it for quick bucks and how can you trust them? ) options out there. This situation sucks big time. Any advice would be more than appreciated. Many thanks in advance for your input, DB