wife wanted our wedding photos in a nice dvd format, downloaded some wedding dvd shareware to try and it installed fine, I actually used it for 20 mins playing around to see if I wanted to buy it or not. I went out to mow the lawn, came back in and had porn icons all over the desktop. it somehow bypassed my Trend Micro virus programs. it will not allow me to use malwarebytes to scan and when I tried to restart its now giving me loginui.exe errors I cant even get to the desktop most times. And when I can get to desktop It will not let my virus scan go beyond 41% either it just hangs, so what can I do ?