Windows 7 Professional
I installed the new update (the one that says "New ZoneAlarm Free Update" and upon restarting, the computer crashed. I had to start in "safe" mode and restore to an earlier point.
Repeated the process, same problem.
I didn't copy the error message, but it was the standard "catastrophic" start up "Windows had to close etc... If this is the first time you've seen the message ...."