Avast Antivirus has worked well for me until recently.
I download programs from the GiveAwayOfTheDay.com site. It is common for me to have to disable the four core shields to enable the program install. But recently that has not worked. I finally found that I had to enter the Avast Passive mode to enable the installs. This require restart of Windows and is rather cumbersome to do.
I appreciate the difficulty of providing system protection, but is there a way to make program installs easier to do?