Just purchased the latest version of za internet security. Everything works fine until the machine has been rebooted a few times. THEN when i go to either restart or shut down the machine will hang on the "shutting down" screen.... for ever. I have checked i dont have any other anti virus prorgrams running, windows defender is turned off. i did notice that the control panel shows the windows firewall is off, yet under services it says the actual service itself is on. any ideas on the freezing it doesnt happen immediatly after install it takes a few reboots. however once it starts happening it doesnt stop, i then get a freeze everytime windows is shut down.