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Power
Symptom Possible solution
Error message:
Invalid system disk
or Non-System
disk or Disk error.
When drive activity stops, remove the disc, and then press the spacebar on the keyboard.
The computer should start up.
Computer does not
turn off when the
Power button is
pressed.
Press and hold the Power button until the computer turns off. Check Power Settings.
Computer shuts
down
automatically.
●
The computer might be in an exceedingly hot environment. Let it cool down.
●
Ensure that computer air vents are not blocked and that the internal fan is running —
see
Keeping the computer free of dust, dirt, and heat on page 28. (Your computer
might not have an internal fan.)
Display (screen)
Symptom Possible solution
Screen is blank. Reconnect the power plug to the back of the computer and to the wall outlet.
Press the Power button to turn on the computer.
Press the space bar on the keyboard or move the mouse to make the screen display visible
again.
Press the Sleep button (select models only), or the Esc key on the keyboard, to resume from
Sleep mode.
Images on the
screen are too
large or too small,
or the images are
fuzzy.
Adjust the display resolution setting in Windows 7:
1. Tap the Start button, and then tap Control Panel.
2. Under Appearance and Personalization, tap Adjust Screen Resolution.
3. Adjust resolution as necessary, and then tap Apply.
Getting Started
Power
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