I been using the free Avast for years and never had a problem but since updating my OS from Windows 8 to 8.1 Avast is not working well. When I open avast i get a "You are unprotected!" message below that it says "Avast Service Is Off: Start" and "Self Defense Is Off: Turn On" but neither option work when I right click I get an "Do You Want to Allow this program...." Screen but when i click yes nothing happens. There i also a blank screen when i try to access any of the avast tools SandBox,SafeZone,Firewall.. When i tried to update virus definition I get a "Failed to update! The Avast service is not running" message. In the scan tab the only option that I get is the "BootTimeScan" option. I also get an error when i tried to add this device to my avast account and it also says that I am currently Registered and that the "current registration will expire on 0 Days". I have tried uninstalling avast it using the Unistall Utilty " avastclear.exe" in safemode and installing Avast again a couple of times but that doesn't seem to work. Please someone help me!!