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Windows Vista Security: Praxisorientierte Sicherheit für Profis by Marcus Nasarek

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Logging On, Switching, Locking, Logging Off, and Shutting Down
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Locking Your Computer
You can lock your computer by pressing Ctrl-Alt-Delete and then clicking the Lock
This Computer option. You can also lock the computer by clicking Start and then click-
ing the Lock button. The Lock button is a blue button with a picture of a lock on it.
The way you unlock your computer depends on whether you are at home or at work:
At home, a lock screen is displayed with the name of the user who is logged on.
Clicking the account name or picture allows you to log back on as that user. If a
password is required for the account, you’ll need to enter the password before
logging on.
At the office, a lock screen is displayed with the name of the user who is logged
on. If you want to log back on as the user, you must press Ctrl-Alt-Delete and
then enter the user’s password.
Logging Off Your Computer
When you are finished using your computer, you can log off or shut down. You can
log off your computer by pressing Ctrl-Alt-Delete and then clicking the Log Off
option. You can also log off by clicking Start, clicking the Options button to the right
of the power and lock buttons, and then clicking Log Off.
A running program may prevent logoff. If so, the Log Off dialog box is
displayed and the programs currently running on the computer are
listed. If one of the currently running programs is causing a problem
with logoff, an explanation of the problem is displayed below the pro-
gram name. You can then cancel the logoff or continue. Cancel the
logoff if you want to save your work and exit a program. Continue the
logoff if you are sure you have saved your work.
Turning Off Your Computer
When it comes to turning off and shutting down, Windows Vista isn’t like earlier
releases of Windows. In Windows Vista, turning off a computer and shutting down a
computer are separate tasks. By default, when you turn off a computer running Win-
dows Vista, the computer enters sleep mode. When entering sleep mode, the operat-
ing system automatically saves all work, turns off the display, and enters a low-
power-consumption mode with the computer’s fans and hard disks stopped. The
state of the computer is maintained in the computer’s memory. When the computer
wakes from sleep mode, its state will be exactly like it was when you turned it off.
You can turn off a computer and enter sleep mode by clicking the Start button and
then clicking the power button on the Start menu. To wake the computer from the
sleep state, you can press the power button on the computer’s case or a key on the
computer’s keyboard. Moving the mouse also wakes the computer.

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