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Troubleshooting
Why doesn't my computer enter Sleep mode?
Your computer may become unstable if the operating mode is changed before the computer completely enters Sleep mode.
To restore your computer to normal operating stability
1 Close all open programs.
2 Click Start, the arrow next to the Lock button, and Restart.
3 If your computer does not restart, press the Ctrl+Alt+Delete keys and click the arrow next to the Shut down button and
Restart.
4 If this procedure does not work, press and hold the power button until the computer turns off.
!
Turning off your computer with the power button may cause loss of unsaved data.
What should I do if Windows does not start, showing a message, when I start my
computer?
If you enter a wrong power-on password three times consecutively, the System Disabled message appears and Windows
will not start. Press and hold the power button for more than four seconds to check that the power indicator goes off. Wait for
10 or 15 seconds, then restart your computer and enter the correct password. When entering the password, check that the
Num lock indicator and Caps lock indicator on the wireless keyboard are off. If any are lit, press the Num Lk key or the Caps
Lock key to turn off the indicator before entering the password.