HP Probook 640 G1 K4l16ut Aba 14 Notebook User Manual

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.From the Start screen, type power options, and then select 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...

Using Battery Check
HP Support Assistant provides information on the status of the battery installed in the computer.
To run Battery Check:
1.Connect the AC adapter to the computer.
NOTE:The computer must be connected to external power for Battery Check to work properly.
2.To access battery information, select the HP Support Assistant app on the Start screen, and
then select Battery and performance.
Battery Check examines the battery and its cells to see if they are functioning properly, and then
reports...

Resolving a low battery level
Resolving a low battery level when external power is available
▲Connect one of the following devices:
●AC adapter
●Optional docking or expansion device
●Optional power adapter purchased as an accessory from HP
Resolving a low battery level when no power source is available
To resolve a low battery level when no power source is available, save your work and shut down the
computer.
Inserting or removing the battery
Inserting a battery
To insert the battery:
1.Turn the computer...

3.Tilt the battery upward (3) and remove it from the computer (4).
Conserving battery power
●From the Start screen, type power, select Settings, and then select Power Options.
●Select low power-use settings through Power Options.
●Turn off wireless and LAN connections and exit modem applications when you are not using
them.
●Disconnect unused external devices that are not plugged into an external power source.
●Stop, disable, or remove any external memory cards that you are not using.
●Decrease screen...

Replacing a user-replaceable battery
Battery Check notifies you to replace the battery when an internal cell is not charging properly or
when the battery storage capacity has reached a weak condition. If the battery is possibly covered by
an HP warranty, instructions include a warranty ID. A message refers you to the HP website for more
information about ordering a replacement battery.
Using external AC power
WARNING!Do not charge the computer battery while you are onboard aircraft.
WARNING!To reduce...

3.Connect the AC adapter to the computer, and then plug it into an AC outlet.
4.Turn on the computer.
●If the power lights turn 
on, the AC adapter is working properly.
●If the power lights remain 
off, the AC adapter is not functioning and should be replaced.
Contact support for information on obtaining a replacement AC power adapter.

Select computers are equipped with either switchable graphics or dual graphics.
●Switchable graphics—Supported by both AMD™ and Intel. If your computer has AMD dynamic...

7 External cards and devices
Using memory card readers
Optional memory cards provide secure data storage and convenient data sharing. These cards are
often used with digital media–equipped cameras and PDAs as well as with other computers.
To determine the memory card formats that are supported on your computer, see 
Getting to know
your computer on page 4.
Inserting a memory card
CAUTION:To reduce the risk of damage to the memory card connectors, use minimal force to
insert a memory card.
1.Hold the card...

3.Press in on the card (1), and then remove it from the slot (2).
NOTE:If the card does not eject, pull the card out of the slot.
Using a USB device
Universal Serial Bus (USB) is a hardware interface that can be used to connect an optional external
device, such as a USB keyboard, mouse, drive, printer, scanner, or hub.
Some USB devices may require additional support software, which is usually included with the
device. For more information about device-specific software, see the manufacturer's...

NOTE:The first time you connect a USB device, a message in the notification area lets you know
that the device is recognized by the computer.
Removing a USB device
CAUTION:To reduce the risk of damage to a USB connector, do not pull on the cable to remove
the USB device.
CAUTION:To reduce the risk of loss of information or an unresponsive system, use the following
procedure to safely remove the USB device.
1.To remove a USB device, save your information and close all programs associated with the
device....

8Drives
Handling drives
CAUTION:Drives are fragile computer components that must be handled with care. Refer to the
following cautions before handling drives. Additional cautions are included with the procedures to
which they apply.
Observe these precautions:
●Before you move a computer that is connected to an external hard drive, initiate Sleep and allow
the screen to clear, or properly disconnect the external hard drive.
●Before handling a drive, discharge static electricity by touching a grounded...