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Table 9-1 Computer symptoms and solutions (continued)
Symptom Possible solution
Computer is not
responding
1. Press ctrl+alt+delete.
2. Select Task Manager.
3. Select any programs that are not responding, and then select End task.
If closing programs does not resolve the problem, restart the computer.
1. Press ctrl+alt+delete.
2. Complete one of these tasks:
● Select the Power icon, and then select Restart.
● Press and hold the power button on the computer for 10 or more seconds to turn off the computer, and
then press the button again to turn on the computer.
Error message:
Invalid system disk or
Non-System disk or
Disk error
When drive activity stops, remove the optical disc inside the optical drive, and then press the spacebar on the
keyboard.
Power
If your computer has power problems, refer to the following table for possible solutions.
Table 9-2
Power symptoms and solutions
Symptom Possible solution
Computer does not
turn off when the
power button is
pressed
Press and hold the power button until the computer turns off. Then turn the computer on again.
Computer shuts
down automatically
● The computer might be in an exceedingly hot environment. Let it cool down.
● Be sure that computer air vents are not blocked.
NOTE: If your computer has an internal fan, be sure that the internal fan is running.
Monitor (select products only)
If you have monitor problems, refer to the following table for possible solutions.
Table 9-3
Monitor symptoms and solutions
Symptom Possible solution
Screen is blank, and
monitor power light is off
Reconnect the power cable to the back of the monitor and to the AC outlet.
Press the power button on the monitor.
36 Chapter 9 Troubleshooting
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