Help! This was working fine for me, until the last update, now when I try to install it (yes, I uninstalled the old one, and I'm installing it with Admin rights) I get a blue screen with nothing on it, and I have to force a restart (cntrl-alt-delete, log off). Nothing installs, no error messages. Running Windows 8.1 X64 Ok..figured it out...seems my SuperAntiSpyware was causing the issue. All fixed.