Unfortunately 18.5.0.125 still does not work properly.
I have a couple of multiboot PC´s with 18.1.0.37 installed on the XP partion, NIS 2010 on Vista and 7 partions, - and no problems.
As soon as live update installs 18.5.0.125 and I try to boot Vista or 7, it crashes my PC with BSOD!
As soon as I uninstall 18.5.0.125 and reinstall 18.1.0.37 or any other security suite, all is OK again.'
i have tried this procedure 4 times on 3 different machines, so I´m 100% sure, that 18.5.0.125 is the problem.
This happens on different models and brands of PC´s.
It appears the cause is a Symantec driver - symefa.sys - which is the culprit.
[edit: changed subject to better reflect thread topic]