Hi,

Try to repair avast! You can do it by going to…

Control Panel → Programs and Features (Add or Remove Programmes) → avast → Click on uninstall /Change ->Scroll down for the option of Repair .

And also make sure that you dont have any other security softwares in the computer. If you have any other security software, then you need to remove them using the specific removal tool for the vendor. You can download the removal tools from

http://singularlabs.com/uninstallers/security-software/

Check the status of avast! and reply back.