Hey there Arash,
Here's a couple of articles that you may find interesting:
http://www.ultimatewindowssecurity.c...entID4634.ashx
"Microsoft's comments:
This event does not necessarily indicate the time that a user has stopped
using a system. For example, if the computer is shut down or loses network
connectivity it may not record a logoff event at all. "
However, event 4647 may be more accurate for you to find, this event is
actually logged during interactive sessions, whereas the 4634 event can be
logged for non-interactive network sessions (Just tested it on my machine):
http://www.ultimatewindowssecurity.c...entID4647.ashx
Let me know if this helps!
Best Regards,
Will
"William Anderson" wrote:
> Just out of curiousity arash...what's the specific eventID you're looking for?
>
> "arash" wrote:
>
> > William,
> >
> > there is no filter applied on the security log, I checked it as you said.
> >
> >
> > "William Anderson" wrote:
> >
> > > Hey there Arash,
> > >
> > > This might sound dumb, but try right clicking on the security log and see if
> > > you have the option to clear the filter. Do that and then check for 4634
> > > events.
> > >
> > > Let me know if it works.
> > >
> > > Best Regards,
> > >
> > > Will
> > >
> > > "arash" wrote:
> > >
> > > > My Windows Vista Event Viewer used to log all logon and logoff events, and I
> > > > could audit all user account activities. But recently it just logs the logon
> > > > event for user accounts and doesn't show any logoff event. I know how to turn
> > > > on and off the auditing feature in Windows XP. But I can't find same thing in
> > > > Windows Vista. I will appreciate if someone helps me.