HP Pavilion Dm1 4400 Notebook Pc Series Manual

							4.Connect the hard drive cable connector (4).
5.Lower the service door onto the computer (1), and then slide the door (2) toward the battery bay
until the battery/service door latch snaps into place.
6.Replace the battery.
7.Reconnect external power and external devices.
8.Turn on the computer.
Improving performance 51 
						

							Using HP 3D DriveGuard (select models only)
HP 3D DriveGuard protects a hard drive by parking the drive and halting data requests under either of
the following conditions:
●You drop the computer.
●You move the computer with the display closed while the computer is running on battery power.
A short time after the end of one of these events, HP 3D DriveGuard returns the hard drive to normal
operation.
NOTE:Hard drives in the primary hard drive bay or in the secondary hard drive bay are protected
by HP 3D DriveGuard. Hard drives connected to USB ports are not covered by HP 3D DriveGuard.
For more information, see the HP 3D DriveGuard software Help.
Using Disk Defragmenter
As you use your computer over time, the files on the hard drive become fragmented. A fragmented
drive means data on your drive is not contiguous (sequential) and, because of this, the hard drive
works harder to locate files, thus slowing down the computer. Disk Defragmenter consolidates (or
physically reorganizes) the fragmented files and folders on the hard drive so that the system can run
more efficiently.
NOTE:It is not necessary to run Disk Defragmenter on solid-state drives.
After you start Disk Defragmenter, it works without supervision. However, depending on the size of
your hard drive and the number of fragmented files, Disk Defragmenter may take more than an hour
to complete.
HP recommends defragmenting your hard drive at least once a month. You may set Disk
Defragmenter to run on a monthly schedule, but you can defragment your computer manually at any
time.
To run Disk Defragmenter:
1.Connect the computer to AC power.
2.From the Start screen, type disk, select Settings, and then select Defragment and optimize
your drives.
3.Follow the on-screen instructions.
For additional information, access the Disk Defragmenter software Help.
Using Disk Cleanup
Disk Cleanup searches the hard drive for unnecessary files that you can safely delete to free up disk
space and help the computer run more efficiently.
To run Disk Cleanup:
1.From the Start screen, type disk, select Settings, and then select Free up disk space by
deleting unnecessary files.
2.Follow the on-screen instructions.
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							Adding or replacing memory modules
The computer has two memory module slots. The capacity of the computer can be upgraded by
adding a memory module to the vacant expansion memory module slot or by upgrading the existing
memory module in the primary memory module slot.
WARNING!To reduce the risk of electric shock and damage to the equipment, unplug the power
cord and remove all batteries before installing a memory module.
CAUTION:Electrostatic discharge (ESD) can damage electronic components. Before beginning
any procedure, ensure that you are discharged of static electricity by touching a grounded metal
object.
NOTE:To use a dual-channel configuration when adding a second memory module, be sure that
both memory modules are identical.
To add or replace a memory module:
CAUTION:To prevent information loss or an unresponsive system:
Shut down the computer before adding or replacing memory modules. Do not remove a memory
module while the computer is on or in the Sleep state.
If you are not sure whether the computer is off, turn the computer on by pressing the power button.
Then shut down the computer through the operating system.
1.Save your work and shut down the computer.
2.Disconnect all external devices connected to the computer.
3.Unplug the power cord from the AC outlet and remove the battery.
4.Remove the service door (see 
Removing the hard drive on page 49).
5.If you are replacing a memory module, remove the existing memory module:
a.Pull away the retention clips (1) on each side of the memory module. The memory module
tilts up.
Improving performance 53 
						

							b.Grasp the edge of the memory module (2), and then gently pull the memory module out of
the memory module slot.
CAUTION:To prevent damage to the memory module, hold the memory module by the
edges only. Do not touch the components on the memory module.
To protect a memory module after removal, place it in an electrostatic-safe container.
6.Insert a new memory module:
CAUTION:To prevent damage to the memory module, hold the memory module by the edges
only. Do not touch the components on the memory module.
a.Align the notched edge (1) of the memory module with the tab in the memory module slot.
b.With the memory module at a 45-degree angle from the surface of the memory module
compartment, press the module (2) into the memory module slot until it is seated.
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							c.Gently press the memory module (3) down, applying pressure to both the left and right
edges of the memory module, until the retention clips snap into place.
CAUTION:To prevent damage to the memory module, be sure that you do not bend the
module.
7.Replace the service door (see Installing a hard drive on page 50).
8.Replace the battery.
9.Reconnect external power and external devices.
10.Turn on the computer.
Updating programs and drivers
HP recommends that you update your programs and drivers on a regular basis to the latest versions.
Updates can resolve issues and bring new features and options to your computer. Technology is
always changing, and updating programs and drivers allows your computer to run the latest
technology available. For example, older graphics components might not work well with the most
recent gaming software. Without the latest driver, you would not be getting the most out of your
equipment.
Download the latest versions of HP programs and drivers and also register to receive automatic
update notifications when new versions become available. For U.S. support, go to 
http://www.hp.com/
go/contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html.
Cleaning your computer
Cleaning your computer and external devices helps keep them in good working condition. If you dont
clean your computer, dust and dirt particles can build up.
CAUTION:Avoid using the following cleaning products to clean your computer:
Strong solvents, such as alcohol, acetone, ammonium chloride, methylene chloride, and
hydrocarbons, which can permanently damage the surface of the computer.
Updating programs and drivers 55 
						

							Cleaning the display, sides, and cover
Gently wipe the display using a soft, lint-free cloth moistened with an alcohol-free glass cleaner. Allow
the display to dry before closing the computer cover.
Use a pre-moistened germicidal wipe to clean the sides and cover. Fibrous materials, such as paper
towels, can scratch the computer.
NOTE:When cleaning the cover of the computer, use a circular motion to aid in removing dirt and
debris.
Cleaning the TouchPad and keyboard
CAUTION:Never allow liquids to drip between the keys on the keyboard, even when you are
cleaning the computer. This can permanently damage internal components.
●To clean and disinfect the TouchPad and keyboard, use a soft microfiber cloth or a static-free
cloth without oil (such as a chamois cloth) moistened with an alcohol-free glass cleaner or use
an acceptable germicidal disposable wipe.
●To prevent keys from sticking and to remove dust, lint, and particles from the keyboard, use a
can of compressed air with a straw extension.
WARNING!To reduce the risk of electric shock or damage to internal components, do not use
a vacuum cleaner attachment to clean the keyboard. A vacuum cleaner can deposit household
debris on the keyboard surface.
Traveling with or shipping your computer
If you have to travel with or ship your computer, here are some tips to keep in mind to keep your
equipment safe.
●Prepare the computer for traveling or shipping:
◦Back up your information to an external drive.
◦Remove all discs and all external media cards, such as digital storage cards, from the
computer.
◦Turn off, and then disconnect all external devices.
◦Shut down the computer.
●Take along a backup of your information. Keep the backup separate from the computer.
●When traveling by air, carry the computer as hand luggage; do not check it in with the rest of
your luggage.
CAUTION:Avoid exposing a drive to magnetic fields. Security devices with magnetic fields
include airport walk-through devices and security wands. Airport conveyer belts and similar
security devices that check carry-on baggage use X-rays instead of magnetism and do not
damage drives.
●If you plan to use the computer during a flight, listen for the in-flight announcement that tells you
when you are allowed to use your computer. In-flight computer use is at the discretion of the
airline.
●If you are shipping the computer or a drive, use suitable protective packaging and label the
package “FRAGILE.”
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							●If the computer has a wireless device installed, the use of these devices may be restricted in
some environments. Such restrictions may apply onboard aircraft, in hospitals, near explosives,
and in hazardous locations. If you are uncertain of the policy that applies to the use of a
particular device, ask for authorization to use your computer before you turn it on.
●If you are traveling internationally, follow these suggestions:
◦Check the computer-related customs regulations for each country or region on your
itinerary.
◦Check the power cord and adapter requirements for each location in which you plan to use
the computer. Voltage, frequency, and plug configurations vary.
WARNING!To reduce the risk of electric shock, fire, or damage to the equipment, do not
attempt to power the computer with a voltage converter kit sold for appliances.
Traveling with or shipping your computer 57 
						

							9 Securing your computer and
information
Computer security is essential for protecting the confidentiality, integrity, and availability of your
information. Standard security solutions provided by the Windows operating system, HP applications,
the non-Windows Setup Utility (BIOS), and other third-party software can help protect your computer
from a variety of risks, such as viruses, worms, and other types of malicious code.
IMPORTANT:Some security features listed in this chapter may not be available on your computer.
Computer risk Security feature
Unauthorized use of the computer Power-on password
Computer viruses Antivirus software
Unauthorized access to data Firewall software
Unauthorized access to Setup Utility (BIOS) settings and
other system identification informationAdministrator password
Ongoing or future threats to the computer Software updates
Unauthorized access to a Windows user account User password
Unauthorized removal of the computer Security cable lock
Using passwords
A password is a group of characters that you choose to secure your computer information and to
protect online transactions. Several types of passwords can be set. For example, when you set up
your computer for the first time, you were asked to create a user password to secure your computer.
Additional passwords can be set in Windows or in the HP Setup Utility (BIOS) that is preinstalled on
your computer.
You may find it helpful to use the same password for a Setup Utility (BIOS) feature and for a Windows
security feature.
Use the following tips for creating and saving passwords:
●To reduce the risk of being locked out of the computer, record each password and store it in a
secure place away from the computer. Do not store passwords in a file on the computer.
●When creating passwords, follow requirements set by the program.
●Change your passwords at least every three months.
●An ideal password is long and has letters, punctuation, symbols, and numbers.
●Before you send your computer for service, back up your files, delete confidential files, and then
remove all password settings.
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							For additional information about Windows passwords, such as screen-saver passwords, see Help
and Support. To access Help and Support, from the Start screen, type help, and then select Help
and Support from the list of apps.
Setting Windows passwords
Password Function
User password Protects access to a Windows user account. You may also
set up your computer to require the user password to exit
Sleep or Hibernation. See 
Setting password protection onwakeup on page 34 for more information.
Administrator password Protects administrator-level access to computer contents.
NOTE:This password cannot be used to access Setup
Utility (BIOS) contents.
Setting Setup Utility (BIOS) passwords
Password Function
Administrator password●Must be entered each time you access Setup Utility
(BIOS).
●If you forget your administrator password, you cannot
access Setup Utility (BIOS).
NOTE:The administrator password can be used in place of
the power-on password.
NOTE:Your administrator password is not interchangeable
with an administrator password set in Windows, nor is it
displayed as it is set, entered, changed, or deleted.
NOTE:If you enter the power-on password at the first
password check, you must enter the administrator password
to access Setup Utility (BIOS).
Power-on password●Must be entered each time you turn on or restart the
computer.
●If you forget your power-on password, you cannot turn
on or restart the computer.
NOTE:The administrator password can be used in place of
the power-on password.
NOTE:A power-on password is not displayed as it is set,
entered, changed, or deleted.
To set, change, or delete an administrator or power-on password in Setup Utility (BIOS):
1.To start Setup Utility (BIOS), turn on or restart the computer, quickly press esc, and then press
f10.
2.Use the arrow keys to select Security, and then follow the on-screen instructions.
Your changes take effect when the computer restarts.
Using passwords 59 
						

							Using Internet security software
When you use your computer to access email, a network, or the Internet, you potentially expose your
computer to computer viruses, spyware, and other online threats. To help protect your computer,
Internet security software that includes antivirus and firewall features may be preinstalled on your
computer as a trial offer. To provide ongoing protection against newly discovered viruses and other
security risks, security software must be kept up to date. It is strongly recommended that you upgrade
the security software trial offer or purchase the software of your choice in order to fully protect your
computer.
Using antivirus software
Computer viruses can disable programs, utilities, or the operating system, or cause them to function
abnormally. Antivirus software can detect most viruses, destroy them, and in most cases, repair any
damage they have caused.
For more information about computer viruses, from the Start screen, type help, and then select Help
and Support from the list of apps.
Using firewall software
Firewalls are designed to prevent unauthorized access to a system or network. A firewall can be
software you install on your computer and/or network, or it can be a combination of both hardware
and software.
There are two types of firewalls to consider:
●Host-based firewalls—Software that protects only the computer it is installed on.
●Network-based firewalls—Installed between your DSL or cable modem and your home network
to protect all the computers on the network.
When a firewall is installed on a system, all data sent to and from the system is monitored and
compared with a set of user-defined security criteria. Any data that does not meet those criteria is
blocked.
Installing software updates
HP, Microsoft Windows, and third-party software installed on your computer should be regularly
updated to correct security problems and improve software performance. For more information, see
Updating programs and drivers on page 55.
Installing Windows updates
Updates to the operating system and other software may have become available after the computer
left the factory. Microsoft sends out alerts regarding critical updates. To protect the computer from
security breaches and computer viruses, install all critical updates from Microsoft as soon as you
receive an alert.
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