Hardware And System Checklist - Toshiba portege z20t-b User Manual

If you are using the AC adaptor, check that the wall outlet is working by
plugging in another device, such as a lamp.
Verify that the computer is on by looking at the Power indicator.
If the indicator is glowing, the computer is on. Also, try turning the computer
off and then on.
If you are using an AC adaptor, verify that the computer is receiving power
from the external power source by looking at the Battery indicator. If the
indicator is glowing, the computer is connected to a live external power
source.
The computer does not load advanced options during
startup
By holding down one of the following keys or buttons during startup, your
computer can load the following advanced options.
Advanced option Key
BIOS utility
Boot menu
Recovery options
If your computer starts to load the Operating System instead of desired
advanced options, do the following:
Make sure that fast startup is disabled in the Power Options by the
following steps:
1. Click Control Panel -> System and Security -> Power Options under
Windows System in All apps.
2. Click Choose what the power button does or Choose what closing
the lid does.
3. Click Change settings that are currently unavailable.
4. Deselect the Turn on fast startup check box from Shutdown settings.
5. Click the Save changes button.
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Hardware and system checklist

This section discusses problems caused by your computer's hardware or
attached peripherals. Basic problems might occur in the following areas:
User's Manual
F2
F12
0 (zero)
Click Start -> Power and then select Restart.
While holding down the corresponding key or button, press the Power
button to turn on the power.
Follow the on-screen instructions to proceed.
Button
Volume down
Volume up
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