Problems installing some programs when SecureAnywhere is active

I am having computer lockups when installing some programs when webrootsucureanywhere 2016 is active.  The programs include EaseUS ToDo Backup and Quicken 2016.  The computer hangs when rebooting after initial program(s)   installation.  The problem can be avoided only by turning off webroot protections realtime and firewall during the initial installation and subsequent reboot.  The problem did not occur when running Norton and other various free AV programs.  It occurs when webroot puts up the initial popup, completely locking the machine repeatedly until windows 10 declares it cannot boot and can be recovered only by a backup restore.  Turning off the protections until after the initial reboot gets around the problem but why is webroot the only av that has this problem?  Other programs, such as drivers, games and browsers do not seem to have the problem.