HP Pavilion 15 Ab100 Notebook Pc Series Manual

							Manually initiating and exiting Hibernation (select models only)
You can enable user-initiated Hibernation and change other power settings and timeouts using Power 
Options.
1.Select Start, click the arrow next to the Shut down button, and then click Hibernate.
2.In the left pane, click Choose what the power button does.
3.Click Change Settings that are currently unavailable.
4.In the When I press the power button area, select Hibernate.
5.Click Save changes.
When the computer exits Hibernation, the power lights turn on and your work returns to the screen.
NOTE:If you have set a password to be required on wakeup, you must enter your Windows password before 
your work will return to the screen.
Setting password protection on wakeup
To set the computer to prompt for a password when the computer exits Sleep or Hibernation, follow these 
steps:
1.Select Start > Control Panel > System and Security > Power Options.
2.In the left pane, click Require a password on wakeup.
3.Click Change Settings that are currently unavailable.
4.Click Require a password (recommended).
NOTE:If you need to create a user account password or change your current user account password, 
click 
Create or change your user account password, and then follow the on-screen instructions. If you 
do not need to create or change a user account password, go to step 5.
5.Click Save changes.
Using the power meter
The power meter allows you to quickly access power settings and view the remaining battery charge.
●To display the percentage of remaining battery charge and the current power plan, move the pointer 
over the Power Meter icon, at the far right of the taskbar.
●To access Power Options, or to change the power plan, click the Power Meter icon and select an item 
from the list.
Di

						

							●HP Recommended. Automatically balances performance with energy conservation.
●Power Saver. Saves power by reducing system performance and screen brightness.
●High Performance. Favors performance, but may use more energy.
You can also create your own power plan and customize it to suit your needs.
Use HP Power Manager (select models only) or Windows Control Panel to select a power plan or to create your 
own plan.
To start HP Power Manager, select Start > Control Panel > Hardware and Sound > HP Power Manager.
To access the Power Options in the Control Panel, select Start > Control Panel > System and Security > 
Power Options, and then select a power plan from the list.
Running on battery power
When a charged battery is in the computer and the computer is not plugged into external power, the computer 
runs on battery power and the display brightness decreases to conserve battery life. The battery in the 
computer slowly discharges when the computer is 
o

						

							3.Pivot the battery (3) upward, and then remove it from the computer (4).
Finding battery information
To monitor the status of your battery, or if the battery is no longer holding a charge, run Battery Check in HP Support Assistant. To access battery information, select 
Start > HP Support Assistant > Next > Battery and 
performance
 > Power and battery > HP Battery Check.
HP Support Assistant provides the following tools and information about the battery:
●Battery test
●Information about battery types, speci

						

							NOTE:For additional information about the power meter, see Using the power meter on page 31.
The computer takes the following actions for a critical battery level:
●If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates 
Hibernation.
●If Hibernation is disabled, and the computer is on or in the Sleep state, the computer remains brie

						

							Running on external AC power
For information about connecting to AC power, refer to the Setup Instructions poster provided in the computer 
box.
The computer does not use battery power when the computer is connected to AC external power with an 
approved AC adapter or an optional docking/expansion device.
WARNING!To reduce potential safety issues, use only the AC adapter provided with the computer, a 
replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
Connect the computer to external AC power under any of the following conditions:
WARNING!Do not charge the computer battery while you are onboard aircraft.
●When charging or calibrating a battery
●When installing or modifying system software
●When writing information to a disc (select models only)
●When running Disk Defragmenter on computers with internal hard drives
●When performing a backup or recovery
When you connect the computer to external AC power:
●The battery begins to charge.
●The screen brightness increases.
●The power meter icon on the Windows desktop changes appearance.
When you disconnect external AC power, the following events occur:
●The computer switches to battery power.
●The screen brightness automatically decreases to save battery life.
●The power meter icon on the Windows desktop changes appearance.
Troubleshooting power problems
Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to AC power:
●The computer does not turn on.
●The display does not turn on.
●The power lights are o

						

							●If the power lights turn on, the AC adapter is working properly.
●If the power lights remain o

						

							Although you can shut down the computer with the power button, the recommended procedure is to use the 
Windows Shut down command:NOTE:If the computer is in the Sleep state or in Hibernation, you must 

						

							7Maintaining your computer
It is important to perform regular maintenance to keep your computer in optimal condition by using tools like Disk Defragmenter and Disk Cleanup. This chapter also includes ways to update programs and drivers, steps 
to clean the computer, and tips for traveling with (or shipping) the computer.
Improving performance
You can improve the performance of your computer by performing regular maintenance tasks with tools such  as Disk Defragmenter and Disk Cleanup.
Handling drives
Observe these precautions when handling drives:
●Before removing or installing a drive, shut down the computer. If you are unsure whether the computer  is 
o

						

							NOTE:Because solid state drives (SSDs) lack moving parts, they do not require HP 3D DriveGuard 
protection.NOTE:A hard drive in a primary hard drive bay or a secondary hard drive bay is protected by HP 3D 
DriveGuard. A hard drive installed in an optional docking device or connected to a USB port is not protected by 
HP 3D DriveGuard.
For more information, see the HP 3D DriveGuard software Help.
Identifying HP 3D DriveGuard status
The drive light on the computer changes color to show that the drive in a primary hard drive bay and/or the  drive in a secondary hard drive bay (select models only) is parked. To determine whether a drive is currently 
protected or whether it is parked, view the icon on the Windows desktop in the 
noti

						

							Go to http://www.hp.com/support to download the latest versions of HP programs and drivers. In addition, 
register to receive automatic update 
noti