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Using disk cleanup – HP 245 G3 Notebook PC User Manual

Page 52

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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.

Select Start > All Programs > Accessories > System Tools > Disk Cleanup.

2.

Follow the on-screen instructions.

Adding or replacing memory modules (select models only)

Adding memory can help improve your computer's performance. Your computer is like your physical

work area. The hard drive is the filing cabinet where you store your work and the memory is the desk

where you work. When your memory isn’t big enough to hold all your work easily, like a desk

overflowing with work, your productivity slows down. A great solution to improve performance is to

expand the amount of memory you have in your computer.
The computer may have one or two memory module slots depending on the model. The memory

module slots are located on the bottom of the computer under the service door. The memory capacity

of the computer can be upgraded by adding a memory module or replacing the existing memory

module in one of the memory module slots.

NOTE:

Before adding or replacing a memory module, make sure the computer has the most recent

BIOS version, and update the BIOS if needed. See

Updating the BIOS on page 54

.

CAUTION:

Failure to update the computer to the latest BIOS prior to installing or replacing a

memory module may result in various system problems.

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:

If you are adding or replacing the memory module in your computer with a single memory

module, insert the memory module into the slot closest to the system board.

NOTE:

To use a dual-channel configuration with 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, in the Sleep state, on in Hibernation.
If you are not sure whether the computer is off or in Hibernation, 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.

4.

Turn the computer upside down on a flat surface.

5.

Remove the battery from the computer (see

Removing a user-replaceable battery on page 33

).

42 Chapter 8 Maintaining your computer