I keep getting pop ups asking if I want to block "power-shell x" . Since I do not know what that is, but I suspect it is a Trojan Horse, I always say yes. I have scanned several times since I began getting the pop up messages and am told I have no problems, but why do the pop up keep occuring?
Were you able to monitor the activities before this pop-up appear and how frequently do they appear? It's possible that you are using a program that requires PowerShell. Also, can you provide a screenshot of the pop-up that appears on your computer? I'll be asking you to send us the virus logs so we can check what is causing this issue on your computer.